[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "1.1"]
[White "Mladenov, Andrey"]
[Black "Krustev, Krasimir S."]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "1558"]
[BlackElo "1970"]
[PlyCount "90"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8.
Nc3 Qh5 9. Nxe4 Be6 10. Bg5 Bd6 11. Bf6 O-O 12. Nxd6 cxd6 13. Bxd4 Bg4 14. Bc3
({RR} 14. Re3 Rfe8 15. Rd3 Ne5 16. Bxe5 dxe5 17. Qe1 e4 18. Re3 Qg6 19. Nd2 f5
20. Kh1 Qc6 21. Rc3 Qd7 22. Qe3 Rad8 23. Nf1 b6 24. h3 Bh5 25. Ng3 Qf7 26. Nxh5
Qxh5 27. Rc7 Rd1+ 28. Rxd1 Qxd1+ {
Celik,E (1777)-Koc,A (1604)/Manavgat 2016/CBM 170 Extra/1-0 (66)}) 14... Rfe8
15. Qxd6 Bxf3 16. Qg3 Bg4 $146 ({RR} 16... f6 17. gxf3 Ne5 18. Bxe5 fxe5 19.
Qg4 Qf7 20. Rad1 Rac8 21. Rd7 Rc4 22. Rxf7 Rxg4+ 23. fxg4 Kxf7 24. Rd1 Ke6 25.
Kg2 Rc8 26. Rd2 Rc4 27. f3 g5 28. Kf2 a6 29. Ke3 a5 30. h3 Ra4 31. a3 {
Weiss,W (2189)-Eichner,C (2086)/Dresden 2013/CBM 155 Extra/1-0 (36)}) 17. h3 f5
{Äèàãðàììà #} 18. hxg4 (18. Rad1 $142 $16) 18... fxg4 19. Rad1 Qf5 20. Qc7
Rxe1+ 21. Rxe1 Qf7 22. Qxf7+ Kxf7 23. Rd1 Re8 24. Rd7+ Re7 25. Rxe7+ Nxe7 26.
Kh2 Nf5 27. g3 Ke6 28. Kg2 Kd5 29. Kf1 Ke4 30. Ke2 g6 31. Bf6 Nd6 32. b3 b5 33.
c3 a6 34. Bg5 Nf7 35. Be3 Ne5 36. Bh6 Nd3 37. Bg5 Nc5 38. Bh6 Ne6 39. Kd2 g5
40. a3 Kf5 41. Kd3 Kg6 42. Bf8 Nxf8 43. Kd4 h5 44. c4 bxc4 45. bxc4 h4 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "1.2"]
[White "Metev, Martin"]
[Black "Dimov, Nikola"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1965"]
[BlackElo "1551"]
[PlyCount "61"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 O-O 8.
O-O-O d6 9. f3 Bd7 10. g4 Ne5 11. Bh6 Rc8 12. Bxg7 Kxg7 13. h4 h5 14. gxh5 Nxh5
15. Nf5+ $146 ({RR} 15. Rg1 Nc4 16. Bxc4 Rxc4 17. Rg5 Rh8 18. f4 Nf6 19. Rh1
Qb6 20. Nf5+ Bxf5 21. exf5 Qd4 22. Qxd4 Rxd4 23. fxg6 fxg6 24. f5 Rdxh4 25.
Rxg6+ Kf7 26. Rhg1 Rf4 27. Rg7+ Ke8 28. R7g5 Rh2 29. R5g2 Rxg2 {
Pekarkova,E-Slepankova,R (2070)/Klatovy 1998/CBM 065 Extra/0-1 (51)}) 15...
Bxf5 16. exf5 Qb6 {Äèàãðàììà #} 17. Nd5 (17. f4 Ng4 18. fxg6 $18) 17... Qd8 18.
f4 e6 19. f6+ Kg8 20. Ne7+ Kh7 21. Nxc8 Qxc8 22. fxe5 dxe5 23. Qg5 Rh8 24. Bd3
Nf4 25. Qxe5 Nxd3+ 26. Rxd3 Qc6 27. Re1 Qa4 28. h5 Qg4 29. hxg6+ Qxg6 30. Rh3+
Kg8 31. Qb8# 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "1.4"]
[White "Ivanov, Oleg M."]
[Black "Andreev, Dobrotich"]
[Result "1/2-1/2"]
[ECO "A18"]
[WhiteElo "1548"]
[BlackElo "1881"]
[PlyCount "132"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. fxg7 cxd2+ 7. Bxd2 Bxg7
8. Qc2 Nc6 9. Nf3 Nd4 10. Nxd4 Bxd4 11. Bd3 Qf6 12. O-O Bxb2 $146 ({RR} 12...
Bd7 13. Be4 O-O-O 14. Bc3 e5 15. Bxd4 exd4 16. Qd3 Bc6 17. f3 h5 18. Rae1 h4
19. Bf5+ Kb8 20. b4 Rh5 21. Bg4 Rhh8 22. b5 Bd7 23. Bxd7 Rxd7 24. a4 Qg6 25.
Qxg6 fxg6 26. Re6 Rg8 27. Kf2 {
Nimzowitsch,A-Nielsen,B/Copenhagen 1933/EXT 2000/1-0 (43)}) 13. Rad1 Bd4 14. c5
e5 15. Be3 Be6 16. Bxd4 exd4 17. Qa4+ c6 18. Be4 O-O-O {Äèàãðàììà #} 19. Bxc6 (
19. Qxa7 Rd7 20. Rb1 $18) 19... Bd5 20. Bxd5 Rxd5 21. Qxa7 Qa6 22. Qb6 Rhd8 23.
a4 d3 24. Qxa6 bxa6 25. Rd2 Rxc5 26. Rfd1 Rc2 27. Kf1 Rc3 28. Ke1 Kc7 29. Rb2
Rd4 30. Kd2 Ra3 31. Ke3 Rd5 32. Rbd2 Rxa4 33. Rxd3 Re5+ 34. Kf3 Rf5+ 35. Ke3
Ra2 36. R1d2 Rxd2 37. Rxd2 a5 38. g4 Rc5 39. Kd4 Rc6 40. Ra2 Kb6 41. Rb2+ Ka6
42. Kd5 Rf6 43. h4 Rf4 44. Kc6 Rc4+ 45. Kd5 Rxg4 46. h5 Rg5+ 47. Kc6 {
Äèàãðàììà #} Rxh5 (47... a4 $3 $19) 48. Rb6+ Ka7 49. Rb7+ Ka8 50. Rxf7 a4 51.
Kb6 Rh6+ 52. Kb5 a3 53. Rf3 Kb7 54. Rxa3 Rh5+ 55. Kc4 Rf5 56. Rh3 h5 57. f3 Kc6
58. Kd4 Kd6 59. Ke4 Ra5 60. f4 Ke6 61. Kf3 Kf6 62. Rh4 Ra3+ 63. Ke4 Kg6 64. Ke5
Re3+ 65. Kd4 Re1 66. Kd5 Re8 1/2-1/2

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "1.5"]
[White "Babatov, Martin"]
[Black "Simov, Zahari"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1737"]
[BlackElo "1467"]
[PlyCount "131"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Bd6 5. Bxd6 Qxd6 6. Nbd2 O-O 7. Be2 b6 8.
O-O Bb7 9. c4 Nbd7 10. Rc1 ({RR} 10. cxd5 exd5 11. Rc1 c5 12. b3 Rac8 13. Rc2
a6 14. h3 b5 15. dxc5 Nxc5 16. Nd4 Nce4 17. Nxe4 Nxe4 18. Bg4 Rc5 19. Qd3 g6
20. Rfc1 f5 21. Be2 Rfc8 22. Rxc5 Nxc5 23. Qd2 Rf8 24. Rxc5 Qxc5 {
Jakso,A (1238)-Peredi,O (1646)/Hungary 2016/EXT 2017/1/2 (35)}) 10... Rfc8 $146
({RR} 10... c5 11. b3 Rfd8 12. Rc2 Rac8 13. Qa1 Ne4 14. Rd1 Qe7 15. Nxe4 dxe4
16. Ne5 cxd4 17. Rxd4 Nxe5 18. Rxd8+ Rxd8 19. Qxe5 Qc5 20. Qxc5 bxc5 21. Kf1
Kf8 22. Ke1 Ke7 23. Rd2 Rc8 24. Kd1 Rc6 25. Kc2 {
Masanauskas,A-Petrauskas,R (2265)/Vilnius 1995/EXT 2005/1/2 (35)}) ({RR} 10...
Rac8 11. cxd5 exd5 12. Nh4 Qe6 13. b4 g6 14. b5 c5 15. bxc6 Rxc6 16. Qa4 Rfc8
17. Rxc6 Bxc6 18. Qa3 a5 19. Rc1 Nb8 20. Ndf3 Be8 21. Ne5 Rxc1+ {
1/2 Morgunova,E (1698)-Spivak,V/Ivanovo 2011/CBM 140 Extra}) 11. a3 Qe7 12. b4
a5 13. Qb3 Ba6 14. Rfe1 axb4 15. axb4 Rcb8 16. cxd5 Bxe2 17. Rxe2 Nxd5 18. g3
Ra7 19. b5 N5f6 20. Nc4 Ne8 21. Nfe5 Nxe5 22. Nxe5 Qa3 23. Qxa3 Rxa3 24. Nc6
Rba8 25. Rb2 Ra1 26. Rbc2 Rxc1+ 27. Rxc1 g6 28. Nb4 Kf8 29. d5 Ke7 30. dxe6
fxe6 31. Na6 Kd7 32. e4 Ra7 33. e5 Kc8 34. Kg2 c5 35. f4 Rd7 36. Rc2 Kb7 37.
Kh3 Rd5 38. Kh4 h6 39. h3 Rd4 40. Rc3 Nc7 41. Nxc7 Kxc7 42. Ra3 Kb7 43. Kg4 Rb4
44. Rd3 Rxb5 45. Rd6 c4 46. Kf3 c3 47. Ke2 c2 48. Kd2 Rc5 49. Kc1 Rc6 50. Rd7+
Ka6 51. Rg7 b5 52. Rxg6 Ka5 53. f5 b4 54. Rxe6 Rc4 55. Re8 Ka4 56. f6 Kb3 57.
Rd8 Kc3 58. f7 Re4 59. Rc8+ Kb3 60. Rxc2 Re1+ 61. Kd2 Rf1 62. Rc7 Kb2 63. e6 b3
64. e7 Rxf7 65. e8=Q Rxc7 66. Qe5+ 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "1.6"]
[White "Evtimova, Bilyana"]
[Black "Chowaniec, Artur"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1203"]
[BlackElo "1660"]
[PlyCount "76"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. e3 e6 5. c3 c6 6. Bd3 Bxd3 7. Qxd3 Qb6 8. b3
({RR} 8. Qc2 c5 9. Qb3 Nbd7 10. Nbd2 cxd4 11. exd4 Be7 12. O-O O-O 13. Ne5 Rac8
14. Rfc1 a6 15. Qxb6 Nxb6 16. a4 Bd6 17. Nd3 Bxf4 18. Nxf4 Nc4 19. Nxc4 Rxc4
20. f3 Rfc8 21. a5 Rb8 22. b3 Rc6 {
Schwarz,D (1172)-Demar,S (1412)/Gerolhofen 2011/EXT 2015/1/2}) 8... Nbd7 9.
Nbd2 Be7 10. O-O Nh5 $146 ({RR} 10... O-O 11. Rac1 c5 12. Ne5 Rfd8 13. h3 Rac8
14. Rfd1 h6 15. Nxd7 Rxd7 16. Be5 a6 17. Qb1 Qd8 18. b4 c4 19. e4 a5 20. a3 Ra8
21. Bxf6 Bxf6 22. f4 axb4 23. axb4 b5 24. Nf3 Rda7 25. e5 {
Kovalev,E (2245)-Chigvintsev,A (2379)/Novosibirsk 2003/EXT 2008/0-1 (47)}) 11.
Rfe1 Nxf4 12. exf4 g6 13. Ne5 Rd8 14. Ndf3 O-O 15. f5 Nxe5 16. Nxe5 gxf5 17.
Qg3+ Kh8 18. Re3 f6 $2 {Äèàãðàììà #} 19. Nd3 (19. Ng6+ $142 $18) 19... Bd6 20.
Qh4 Rde8 21. Nf4 Bxf4 22. Qxf4 Qd8 23. Rg3 Rg8 24. Rd1 Rxg3 25. Qxg3 e5 26. f4
e4 27. Re1 Rg8 28. Qh3 Rg4 29. g3 Qg8 30. Kf2 Qd8 31. Qh5 Qd7 32. h3 Rg6 33.
Qe2 Qg7 34. Rg1 Qc7 35. g4 Qxf4+ 36. Ke1 fxg4 37. hxg4 Qc1+ 38. Kf2 Qxc3 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "1.7"]
[White "Kostov, Nikolay"]
[Black "Doychev, Ivan"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1648"]
[BlackElo "1188"]
[PlyCount "37"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. e3 d5 3. Bd3 c5 4. c3 Nc6 5. f4 Bg4 6. Nf3 e6 7. O-O cxd4 ({RR} 
7... Be7 8. Nbd2 O-O 9. h3 Bf5 10. Be2 h6 11. g4 Bh7 12. Ne5 Ne4 13. Nxe4 dxe4
14. Qa4 Qc7 15. Bd2 Nxe5 16. dxe5 a6 17. c4 Rad8 18. Rfd1 Rd3 19. Bxd3 exd3 20.
e4 Bxe4 21. Re1 Bc6 22. Qb3 {
Chigaev,M (2496)-Nepomniachtchi,I (2728)/Sochi 2015/CBM 166 Extra/0-1}) 8. cxd4
({RR} 8. exd4 Bd6 9. Qc2 h6 10. Ne5 Qc7 11. Nd2 O-O 12. Ndf3 Rac8 13. Bd2 Bxf3
14. Rxf3 Nxd4 15. cxd4 Qxc2 16. Bxc2 Rxc2 17. Bc1 Rfc8 18. Rf1 Ne4 19. b3 Re2
20. Nf3 Rcc2 21. Ne1 Rxa2 22. Rxa2 Rxa2 {
Naidoo,R (1168)-Kara,Z (1243)/Waterkloof 2015/CBM 166 Extra/0-1 (34)}) 8... Be7
$146 ({RR} 8... Rc8 9. Nc3 Bb4 10. Nb1 Ne4 11. a3 Ba5 12. b4 Bb6 13. Nbd2 Nf6
14. Qe1 Bxf3 15. Nxf3 O-O 16. Qh4 h6 17. Ne5 Nxd4 18. exd4 Bxd4+ 19. Kh1 Bxa1
20. Bd2 Bxe5 21. fxe5 Ne4 22. Qg4 Nxd2 23. Re1 {
Dimitrova,R-Nguyen,T/Vung Tau 2008/EXT 2009/0-1 (32)}) 9. a3 O-O 10. Qc2 Rc8
11. Bd2 Qb6 12. h3 Bxf3 13. Rxf3 Na5 14. b4 Nc4 15. Bxc4 Rxc4 16. Qd3 Rfc8 17.
f5 a5 18. bxa5 Qb2 19. fxe6 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "1.8"]
[White "Velikov, Nikola"]
[Black "Georgiev, Nikolay Zh."]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "1179"]
[BlackElo "1572"]
[PlyCount "45"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. O-O e6 5. d3 Bd6 6. Nbd2 O-O 7. h3 $146 ({RR
} 7. c4 c6 8. Re1 Bb4 9. a3 Bxd2 10. Nxd2 d4 11. b4 Nbd7 12. c5 Rc8 13. Nc4 b6
14. Nd6 Rc7 15. Bf4 bxc5 16. Nxf5 e5 17. Bd2 g6 18. Nd6 Qe7 19. Nc4 cxb4 20.
axb4 c5 21. Na5 {1-0 Fiadosenka,R-Nasirova,G/Sibenik 2007/CBM 120 Extra}) ({RR
} 7. Qe1 e5 8. e4 {
1/2 Shilin,D (2393)-Volovikov,A (2248)/Odessa 2008/CBM 126 Extra}) ({RR} 7. Re1
Bg6 8. e4 dxe4 9. Nxe4 Nxe4 10. dxe4 Nc6 11. a3 Bc5 12. Bf4 Bb6 13. Nh4 e5 14.
Nxg6 hxg6 15. Be3 Qe7 16. Bxb6 axb6 17. c3 Rfd8 18. Qc2 Rd6 19. Rad1 Rad8 20.
Bf3 Qf6 21. Be2 Qg5 {
Vo,T-Nguyen,L (1216)/Ho Chi Minh City 2016/CBM 171 Extra/1/2 (45)}) ({RR} 7.
Nh4 c6 8. Nxf5 exf5 9. Nf3 Nbd7 10. Nd4 g6 11. c4 Qb6 12. Nb3 Nc5 13. Be3 Ng4
14. Bxc5 Bxc5 15. d4 Be7 16. cxd5 cxd5 17. Bxd5 Rfd8 18. Bg2 a5 19. a4 Ne5 20.
Rb1 Rac8 21. e3 Bb4 {
Emmerton,S (126)-Gilbert,J (112)/Coventry 2015/EXT 2016/1-0 (70)}) 7... Nbd7 8.
Nh4 c6 9. c4 Bg6 10. b3 Be5 11. Rb1 Qb6 12. Kh1 Bh5 13. Bb2 Rfd8 14. Nhf3 Bxb2
15. Rxb2 Nc5 16. b4 Bg6 17. Qc2 Ncd7 18. c5 Qc7 19. Rfb1 a6 20. a4 e5 21. b5
axb5 22. axb5 Ra7 23. b6 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "2.1"]
[White "Krustev, Krasimir S."]
[Black "Krastev, Krasimir N."]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1970"]
[BlackElo "1707"]
[PlyCount "55"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 e5 5. Nf3 Nc6 6. Bc4 Be7 7. Qd5 d6 8.
Qxf7+ Kd7 9. Qxg7 Nf6 10. Bg5 b5 $146 ({RR} 10... Rf8 11. Nbd2 Kc7 12. O-O-O
Bd7 13. Bxf6 Rxf6 14. Qxh7 Rc8 15. h4 Kb8 16. h5 Qc7 17. Bd5 Nb4 18. Qxe7 Nd3+
19. Kb1 Nxb2 20. Rc1 Rxf3 21. gxf3 Na4 22. Nc4 b5 23. Qxd6 bxc4 24. Qxc7+ Kxc7
25. h6 {Duarte Mermow,M (2405)-Domeyko Balmaceda,C (1904)/Santiago de Chile
2008/EXT 2012/1-0}) 11. Bxf6 bxc4 12. Qxh8 Bxf6 13. Qxd8+ Nxd8 14. Na3 Ba6 15.
Nc2 Ne6 16. Nb4 Bb7 17. Nd2 Rc8 18. Nd5 Bxd5 19. exd5 Nf4 20. Ne4 Nd3+ 21. Kd2
Be7 22. g3 Rf8 23. Ke2 a5 24. b3 a4 25. b4 Rb8 26. a3 Rb5 27. Nd2 Rxd5 28. Nxc4
1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "2.2"]
[White "Chowaniec, Artur"]
[Black "Metev, Martin"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1660"]
[BlackElo "1965"]
[PlyCount "115"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e6 2. Nf3 d5 3. Nc3 c5 4. a3 ({RR} 4. d3 Nf6 5. e5 Nfd7 6. g3 Nc6 7. Bf4
Be7 8. h4 b5 9. Bg2 b4 10. Nb1 Bb7 11. O-O Qc7 12. Re1 a5 13. c4 dxc4 14. dxc4
Rd8 15. Nbd2 O-O 16. Qe2 Nd4 17. Nxd4 cxd4 18. Bxb7 Qxb7 {
Hurelbaatar,C (2310)-Feller,J (2270)/Novi Sad 1990/TD/1-0 (43)}) ({RR} 4. Ne5
Nf6 5. d3 dxe4 6. dxe4 Qxd1+ 7. Kxd1 Bd6 8. Bg5 Bxe5 9. Bxf6 Bxf6 {
0-1 Orozco,D-Quinonez,F (1795)/Cali 2016/CBM 171 Extra}) 4... dxe4 $146 ({RR} 
4... Nc6 5. Be2 ({RR} 5. d3 d4 6. Ne2 e5 7. h3 Bd6 8. Bg5 Be7 9. Qd2 h6 10.
Bxe7 Ngxe7 11. Ng3 O-O 12. Be2 Be6 13. O-O a5 14. b3 Qc7 15. Nh2 Ng6 16. Nh5
Nf4 17. Qd1 f5 18. Ng3 fxe4 19. Nxe4 Bd5 {
Menkovsky,L-Kruchenenko,S/Kiev 2004/CBM 101 Extra/0-1}) ({RR} 5. Bb5 Bd7 6. O-O
a6 7. Bxc6 Bxc6 8. Ne5 Qc7 9. Nxc6 Qxc6 10. Re1 d4 11. Nb1 Nf6 12. d3 h6 13.
Bf4 Be7 14. Nd2 Nd7 15. Nf3 O-O 16. c3 dxc3 17. bxc3 Rfd8 18. Qd2 Nf8 19. Ne5
Qe8 {Fox,G-Bloomfield,K/Indianapolis 2009/CBM 131 Extra/1-0}) 5... Nf6 6. e5
Ne4 7. d3 Nxc3 8. bxc3 Be7 9. O-O O-O 10. d4 Qa5 11. Bd2 f6 12. c4 Qc7 13. Bf4
fxe5 14. dxe5 Rxf4 15. Qd2 Rf8 16. Bd3 Nxe5 17. Nxe5 Qxe5 18. Rae1 Qf4 19. Qe2
{Veress,A (1047)-Macovei,D (1173)/Calimanesti 2013/CBM 153 Extra/0-1 (33)}) 5.
Nxe4 Nd7 6. d4 Ngf6 7. Nc3 Be7 8. g3 O-O 9. Bg2 Re8 10. O-O Nf8 11. dxc5 Qxd1
12. Rxd1 Bxc5 13. Nb5 Bb6 14. Ne5 Ng6 15. Nxg6 hxg6 16. Nd6 Re7 17. Bg5 Rd7 18.
h3 Rb8 19. c3 Bc5 20. Nxc8 Rxc8 21. Rxd7 Nxd7 22. Rd1 Ne5 23. Bxb7 Rb8 24. Rd8+
Rxd8 25. Bxd8 Nd3 26. b4 Bxf2+ 27. Kg2 Be3 28. c4 Kf8 29. Bc6 Bc1 30. Be4 Ne5
31. c5 Bxa3 32. c6 Nxc6 33. Bxc6 Bxb4 34. Kf3 f6 35. Bb5 Be7 36. Ba5 Bc5 37.
Ke4 Ke7 38. Bd3 Kd6 39. Kf3 f5 40. Kf4 Ke7 41. Bc3 Bd6+ 42. Kf3 e5 43. Bc2 Ke6
44. Bb3+ Ke7 45. g4 Bc7 46. Bb4+ Kf6 47. Bd2 e4+ 48. Ke2 f4 49. Bc2 e3 50. Bc3+
Kg5 51. Kf3 Kh4 52. Bxg6 Kxh3 53. Bxg7 e2 54. Bc3 Bd8 55. Bd3 Bf6 56. Bd2 Be5
57. Bxe2 Kh4 58. Bxf4 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "2.3"]
[White "Kostov, Nikolay"]
[Black "Babatov, Martin"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1648"]
[BlackElo "1737"]
[PlyCount "94"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 c6 2. e4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Nh3 ({RR} 6. Nd2 Qb6 7.
Ne2 Qa6 8. Nf4 Ne7 9. O-O Nf5 10. Nf3 h5 11. h4 Be7 12. g3 Qxd3 13. Nxd3 Na6
14. Bd2 c5 15. c3 Rc8 16. Rfc1 g6 17. Rab1 Kd7 18. Kf1 c4 19. Nde1 b5 20. Nc2
Nb8 {Farkas,T (2370)-Eperjesi,L (2355)/Budapest 1993/EXT 1997/1/2 (44)}) 6...
Ne7 ({RR} 6... c5 7. c3 Nc6 8. Be3 Qb6 9. Qc2 cxd4 10. cxd4 Bb4+ 11. Nc3 Nge7
12. a3 Bxc3+ 13. bxc3 Nf5 14. O-O Rc8 15. Qd3 O-O 16. g4 Nxe3 17. fxe3 Qd8 18.
Rf3 Ne7 19. Raf1 Ng6 20. Nf4 Qa5 21. Ne2 {
Katona,G (1734)-Domonkos,T (1924)/Hungary 2015/EXT 2016/0-1}) 7. O-O Nf5 8. g4
$146 ({RR} 8. Nd2 Qc7 9. Nf3 c5 10. c3 Nc6 11. a3 a5 12. Nf4 Be7 13. Nh5 O-O
14. g4 c4 15. Qc2 Nh4 16. Ng5 Bxg5 17. f4 Bd8 18. f5 exf5 19. gxf5 Qd7 20. Kh1
Kh8 21. Qf2 Qxf5 22. Qxf5 Nxf5 {
Khrustaleva,T-Nurieva,A (1859)/Ufa 2008/EXT 2010/1-0 (44)}) 8... Nh4 9. Nd2 Be7
10. Nf3 Nxf3+ 11. Qxf3 Nd7 12. c3 h6 13. Bd2 Qb6 14. b4 a5 15. bxa5 Qxa5 16.
Qe3 h5 17. g5 g6 18. c4 Qa3 19. cxd5 Qxe3 20. Bxe3 cxd5 21. a4 Bd8 22. Rfb1 Ra7
23. Kg2 Nb6 24. Rb4 Nc4 25. Kf3 Kd7 26. Ke2 Be7 27. Rb3 b6 28. f4 Rha8 29. Nf2
Rxa4 30. Rxa4 Rxa4 31. h4 Nxe3 32. Kxe3 Ra3 33. Rxa3 Bxa3 34. Nd3 Kc6 35. Kd2
Kb5 36. Kc3 Ka4 37. Kc2 b5 38. f5 exf5 39. Nf4 b4 40. Nxd5 b3+ 41. Kb1 Kb5 42.
Nf4 Kc4 43. d5 Kd4 44. e6 Ke4 45. Nxh5 gxh5 46. exf7 Kxd5 47. g6 Bf8 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "2.4"]
[White "Andreev, Dobrotich"]
[Black "Velikov, Nikola"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "1881"]
[BlackElo "1179"]
[PlyCount "27"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 d6 6. Be3 Nf6 7. Qd2 Be7 8. f3
O-O 9. g4 g6 $146 ({RR} 9... b5 10. a3 ({RR} 10. O-O-O Nfd7 11. g5 Nb6 ({RR} 
11... Bb7) 12. Bd3 Qc7 13. Kb1 Nc4 14. Bxc4 Qxc4 15. h4 Nd7 16. g6 Bf6 ({RR} 
16... fxg6 17. b3) ({RR} 16... hxg6 17. h5) 17. h5 Bb7 18. Qh2 fxg6 19. hxg6
hxg6 20. Qxd6 Ne5 21. Nxe6 Rfc8 22. Nc5 Rd8 23. Qc7 b4 24. f4 ({RR} 24. N3a4
Rxd1+ 25. Rxd1 Qe2) 24... Ng4 {
Grosar,A (2475)-Atlas,V (2450)/Ptuj 1995/CBM 047/[Ernst]/1-0 (43)}) ({RR} 10.
h4 Bb7 11. Bd3 Nbd7 12. h5 Ne5 13. g5 Nxd3+ 14. cxd3 Nd7 15. g6 Bh4+ 16. Kd1
Qf6 17. gxh7+ Kxh7 18. Qg2 Qe7 19. Qg4 Bf6 20. h6 g6 21. Kd2 Rac8 22. Nce2 d5
23. a3 b4 24. Ng3 bxa3 {
Poppe,H (1698)-Herrmann,S (1782)/Rieneck 1993/EXT 2015/1/2 (35)}) 10... Bb7 11.
h4 ({RR} 11. g5 Nfd7 12. h4 Ne5 13. O-O-O d5 14. exd5 Bxd5 15. Nxd5 Qxd5 16.
Rh3 Nbc6 17. f4 Nxd4 18. Bxd4 Nf3 19. Qg2 Nxd4 20. Qxd5 exd5 21. Rxd4 Bd6 22.
Bg2 Rac8 23. Bxd5 Rfd8 24. Rhd3 Rc7 25. f5 Rdc8 {
Nadzamova,V (1694)-Trgovac,M (1277)/Prague 2016/CBM 174 Extra/1-0 (49)}) 11...
Nc6 12. Nxc6 Bxc6 13. h5 d5 14. g5 Nd7 15. Qg2 dxe4 16. Nxe4 Bxe4 17. fxe4 Rc8
18. c3 Ne5 19. Bd4 Qc7 20. Bxe5 Qxe5 21. g6 fxg6 22. hxg6 h6 23. Bd3 Bg5 24.
Qh2 {Alvarez de la Torre,C (1800)-Orton,R (2090)/Haifa 1976/EXT 2000/0-1 (32)})
({RR} 9... Nc6) ({RR} 9... Nbd7 10. g5 Ne8 11. O-O-O Ne5 12. Be2 b5 13. f4 Nc4
14. Bxc4 bxc4 15. f5 Rb8 16. Nc6 Qc7 17. Nxb8 Qxb8 18. f6 gxf6 19. gxf6 Bxf6
20. Rhg1+ Kh8 21. Bh6 Bg7 22. Bxg7+ Nxg7 23. Rxg7 Kxg7 24. Qg5+ {
Andreev,D (2067)-Dyulgerov,V (1644)/Sofia 2011/CBM 144 Extra/1-0}) 10. g5 Nh5
11. O-O-O Nd7 12. Kb1 b5 13. Nc6 Bb7 14. Nxd8 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "2.5"]
[White "Tsolov, Goran"]
[Black "Ivanov, Oleg M."]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "1910"]
[BlackElo "1548"]
[PlyCount "137"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Bd2 Bg7 7. Bc3 Nf6 8.
Bd3 ({RR} 8. Nd2 O-O 9. Bc4 d5 10. exd5 cxd5 11. Bb3 a5 12. a3 d4 13. Bxa5 Qxa5
14. O-O e5 15. f3 Ba6 16. Re1 Nd5 17. Nc4 Bxc4 18. Bxc4 Ne3 19. Qd3 Nxc4 20.
Qxc4 Rfc8 21. Qd3 Rab8 22. b4 Qa4 {
Moric,I (1469)-Bulic Braculj,L (1804)/Trogir 2016/EXT 2017/0-1}) 8... d5 $146 (
{RR} 8... O-O 9. O-O Qc7 ({RR} 9... d5 10. Nd2 ({RR} 10. exd5 cxd5 11. Bd4 Qd6
12. Re1 Ng4 13. Bxg7 Qxh2+ 14. Kf1 Kxg7 15. Be4 dxe4 16. Qd4+ e5 17. Qxe4 f5
18. Qc6 Rf7 19. c4 Bb7 20. Qc5 Qxg2+ 21. Ke2 Rd8 22. Nd2 Rd4 23. Rf1 Rfd7 24.
Rad1 Rxd2+ {Saenger,K (1548)-Rex,D (1795)/Wesel Undeloh 2005/EXT 2007/0-1 (35)}
) 10... Qc7 11. Qe1 Be6 12. f4 dxe4 13. Nxe4 Nxe4 14. Bxe4 Bxc3 15. Qxc3 Bd5
16. Bd3 Qb6+ 17. Rf2 e6 18. Qe5 Rad8 19. b3 c5 20. Re1 a5 21. Re3 c4 22. Bf1
cxb3 23. axb3 a4 24. bxa4 {Carpintero,J (2270)-Visier Segovia,F (2280)/Oropesa
del Mar 1996/EXT 1998/1-0 (43)}) 10. Qe2 e6 11. Nd2 c5 12. Qf3 Ne8 13. Bxg7
Kxg7 14. e5 Rb8 15. Nc4 f6 16. Qg3 fxe5 17. Nxe5 d6 18. Nxg6 hxg6 19. Qxg6+ Kh8
20. Rae1 Qg7 21. Qh5+ Kg8 22. Re3 Nf6 23. Qh4 {
Kecic,S (2235)-Krumpacnik,D (2380)/Bled 1998/EXT 2000/0-1 (38)}) 9. exd5 O-O
10. dxc6 Qd5 11. Qf3 Qxf3 12. gxf3 a5 13. Nd2 Be6 14. Ne4 Bd5 15. Nxf6+ exf6
16. Be4 Rfe8 {Äèàãðàììà #} 17. Kf1 (17. O-O-O $16) 17... Bxe4 18. fxe4 Rxe4 19.
Rd1 Rc4 20. Rd6 Bf8 21. Rd5 a4 22. Bxf6 Rxc6 23. Bc3 a3 24. Rb5 axb2 25. Bxb2
Rxc2 26. Bd4 Bg7 27. Be3 Rcxa2 28. Kg2 R2a5 29. Rb7 Ra1 30. Rxa1 Bxa1 31. Bh6
Bd4 32. Rd7 Bg7 33. Be3 f5 34. Rb7 Rf8 35. Bc5 Rf7 36. Rb8+ Bf8 37. Kg3 Kg7 38.
Bd4+ Kh6 39. Kh3 Kh5 40. Be3 g5 41. f4 g4+ 42. Kg3 Bg7 43. Rb5 Bc3 44. Bf2 Kg6
45. Rb6+ Bf6 46. Bd4 h5 47. h3 h4+ 48. Kg2 Kg7 49. Bg1 Rd7 50. hxg4 fxg4 51.
Be3 Bd4 52. Rb3 Bxe3 53. Rxe3 Kf6 54. Re5 Rd2+ 55. Kg1 h3 56. Rg5 Rg2+ 57. Kh1
Ke6 58. Rh5 Rf2 59. f5+ Rxf5 60. Rh4 Rg5 61. Rh6+ Ke5 62. Rb6 Kf4 63. Rb4+ Kg3
64. Rb3+ Kh4 65. Rb4 Rc5 66. Kh2 Rc2+ 67. Kh1 h2 {Äèàãðàììà #} 68. Rxg4+ Kh3
69. Rg3+ 1/2-1/2

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "2.6"]
[White "Georgiev, Nikolay Zh."]
[Black "Simov, Zahari"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1572"]
[BlackElo "1467"]
[PlyCount "91"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e6 2. Nc3 Nc6 3. Nf3 ({RR} 3. d4 Bb4 4. Nge2 ({RR} 4. Nf3 d6 5. Bb5 a6 6.
Be2 Nge7 7. Qd3 O-O 8. a3 Ba5 9. O-O e5 10. d5 Nb8 11. Nd2 Nd7 12. b4 Bb6 13.
Bg4 Bd4 14. Nb3 Ba7 15. Na4 Qe8 16. Nc3 f5) 4... d5 ({RR} 4... Qh4 5. a3 Ba5 6.
b4 Bb6 7. Be3 d6 8. g3) ({RR} 4... d6 5. a3 Bxc3+ 6. Nxc3 e5 7. d5 Nce7 8. Bd3
Ng6 9. Qf3 Bd7 10. g3 N8e7 11. h4) 5. e5) ({RR} 3. g3 d5 4. Bg2 Nf6 5. d3 ({RR
} 5. exd5 exd5 6. Nge2 d4) 5... Bb4 6. Bd2 O-O 7. Nge2) ({RR} 3. f4 d5 4. Nf3
Nf6 5. e5 Nd7 6. d4) 3... f6 $146 ({RR} 3... d5 4. Bb5 ({RR} 4. d3 Nf6 5. exd5
exd5 6. d4 Bb4 7. Ne5 Nxe5 8. dxe5 Ne4 9. Bd2 Bxc3 10. Bxc3 Nxc3 11. bxc3 O-O
12. c4 dxc4 13. Qxd8 Rxd8 14. Bxc4 Bf5 15. O-O Bxc2 16. Rac1 Rd2 17. Bb3 Bxb3
18. axb3 c6 {Powell,M (1935)-Facchini,G/Dubai 1986/TD/0-1}) 4... a6 5. Bxc6+
bxc6 6. O-O Nf6 7. e5 ({RR} 7. Re1) 7... Nd7 ({RR} 7... Ng8 8. d3 h5 9. a4 c5
10. a5 Nh6 11. Ra4 Nf5 12. Bg5 Be7 13. h4 Rb8 14. Qc1 Rb4 15. d4 Rxa4 16. Nxa4
cxd4 17. b4 f6 18. Bd2 Bd7 19. Qa3 Bxa4 20. Qxa4+ Qd7 21. Qa1 c5 22. bxc5 {
Schoffstoll,K-Allen,M/Seattle 1988/EXT 2004/1-0 (32)}) 8. d3 Be7 9. Ne2 c5 10.
c3 Nb6 11. Be3 Bd7 12. Qc2 Rb8 13. b3 a5 14. Nd2 Qc8 15. f4 g6 16. Bf2 Qb7 17.
Ng3 h5 18. h3 {Rigo,J (2320)-Sibilio,M (2200)/Rome 1982/MCD/1-0 (45)}) ({RR} 
3... Bb4 4. a3 Bxc3 ({RR} 4... Ba5 5. b4 Bb6 6. Bb2) 5. dxc3 ({RR} 5. bxc3 d6
6. d4 Nf6 ({RR} 6... Nge7 7. Bc4 O-O 8. O-O e5 9. dxe5 dxe5 10. Bg5 Qe8) 7. Bd3
e5 8. h3 h6) 5... d6 6. g3 ({RR} 6. Bb5) 6... Nge7 7. Bg2 O-O 8. O-O ({RR} 8.
Be3) 8... e5 9. c4 f5 10. exf5 ({RR} 10. Nd2) 10... Bxf5 11. Ng5 Qd7 ({RR} 
11... Qe8) 12. Be3 h6 ({RR} 12... Kh8 13. Qd2) 13. Ne4 Bh3 14. Qd3 ({RR} 14.
Bxh3 Qxh3) 14... Rf7 15. b4 ({RR} 15. f3 Nf5 16. Bf2 Nfd4) 15... Bxg2 16. Kxg2
Nf5 17. c3 Raf8 18. f3 {
Lima,D (2505)-Miles,A (2615)/Matanzas 1995/CBM 048/[Blatny,P]/0-1 (41)}) ({RR} 
3... d6 4. d4 d5 5. e5 a6 6. a3 h6 7. Bd3 Nge7 8. O-O g6 9. Be3 Nf5 10. Bxf5
gxf5 11. Ne1 h5 12. f4 Na5 13. b3 Bd7 14. a4 Qe7 15. Nd3 Qh4 16. Bf2 Qd8 17.
Qe1 h4 18. h3 {
Loyarte,F (1230)-Hamsany,M (1350)/Bordeaux 2006/EXT 2007/0-1 (48)}) 4. Bc4 Nge7
5. a3 g6 6. d3 Bg7 7. Be3 O-O 8. Ba2 a6 9. Qd2 Kh8 10. Bh6 d5 11. Bxg7+ Kxg7
12. O-O b5 13. Rfe1 d4 14. Ne2 e5 15. h3 Qd6 16. Nh2 Be6 17. Bxe6 Qxe6 18. Ng4
g5 19. Ng3 Kg6 20. f3 h5 21. Nh2 Rh8 22. Rf1 Rh7 23. Ne2 Kg7 24. Rf2 Rah8 25.
b3 Ng6 26. a4 b4 27. Raf1 a5 28. Kh1 Kf7 29. Ng1 Ke7 30. Rc1 Qd6 31. Qe1 Nf4
32. Nf1 Qd7 33. Nd2 Ng6 34. Nc4 Nf4 35. Kh2 g4 36. Ne2 Ng6 {Äèàãðàììà #} 37.
Ng3 (37. Nxa5 $18) 37... Nf4 38. Nf5+ Kf7 39. h4 gxf3 40. Rxf3 Rg8 41. g3 Ng6
42. Qf1 Qe6 43. Qh3 Nge7 44. Rcf1 Nxf5 45. Qxf5 Qxf5 46. Rxf5 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "3.1"]
[White "Babatov, Martin"]
[Black "Krustev, Krasimir S."]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1737"]
[BlackElo "1970"]
[PlyCount "81"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. Bf4 d6 3. c4 ({RR} 3. Nc3 Nbd7 4. Nf3 c5 5. d5 h6 6. h4 g6 7. e4
Bg7 8. Qd2 a6 9. a4 Qa5 10. Ra3 Nh5 11. Bh2 f5 12. Nd1 Qc7 13. exf5 gxf5 14. c4
Ndf6 15. Bd3 Ng4 16. Ne3 O-O 17. O-O Bd7 {
Boguszlavszkij,J (2290)-Horvath,J (2537)/Zalakaros 2002/EXT 2004/0-1 (37)})
3... c6 ({RR} 3... Bf5 4. Nc3 Nbd7 5. Nf3 h6 6. Qb3 Qc8 7. g3 g5 8. Bd2 Ne4 9.
Be3 Bg7 10. Bg2 O-O 11. Nxe4 Bxe4 12. O-O c5 13. d5 Nf6 14. Nd2 Bxg2 15. Kxg2
Ng4 16. Rab1 Qd7 17. Nf3 Nxe3+ 18. Qxe3 {
Hudec,J (2022)-Marsina,S (1970)/Tatranske Matliare 2015/EXT 2017/1/2}) 4. Nc3
g6 $146 ({RR} 4... Qb6 5. Rb1 Bf5 6. Na4 Qc7 7. Rc1 Nh5 8. e3 Nxf4 9. exf4 g6
10. Nf3 Bg7 11. g3 Nd7 12. Bg2 Nf6 13. O-O O-O 14. b3 Rab8 15. Qe2 Rfe8 16. c5
Qa5 17. Nd2 Bg4 18. Qd3 d5 19. Nf3 {
Hysiqi,R (1670)-Hocher,E (1850)/Arradon 2004/EXT 2007/1-0 (51)}) ({RR} 4... Qa5
5. Qc2 e5 6. dxe5 dxe5 7. Bg5 Be7 8. e3 Be6 9. Nf3 Nbd7 10. Nd2 O-O 11. Nb3 Qc7
12. Bd3 Bd6 13. Rd1 g6 14. h4 Nh5 15. Be2 Kg7 16. Bxh5 gxh5 17. Qd2 Bb4 18. e4
Rg8 19. a3 {
Baskewitsch,P (2025)-Mendes,D (1560)/Dudelange 1997/EXT 2013/1-0 (38)}) 5. e4
Bg7 6. Nf3 O-O 7. Be2 Nbd7 8. O-O Nh5 9. Be3 e5 10. Qd2 Re8 11. Rfd1 Qe7 12.
dxe5 dxe5 13. Rac1 Nf8 14. Qd6 Qxd6 15. Rxd6 Ne6 16. Rcd1 Bf8 17. R6d2 Nef4 18.
Bf1 Bg4 19. a3 b6 20. Ne2 Nxe2+ 21. Bxe2 Nf4 22. h3 Nxe2+ 23. Rxe2 Bxf3 24.
gxf3 Rad8 25. Red2 Be7 26. Rd7 Kg7 27. Kf1 Kf6 28. Ke2 Rxd7 29. Rxd7 Ra8 30.
Bg5+ Kxg5 31. Rxe7 Kf6 32. Rc7 c5 33. Ke3 g5 34. Kd3 h5 35. a4 Ke6 36. a5 Rd8+
37. Kc2 Rd7 38. Rc6+ Rd6 39. Rc7 Rd7 40. Rc6+ Rd6 41. Rc8 1/2-1/2

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "3.2"]
[White "Andreev, Dobrotich"]
[Black "Chowaniec, Artur"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1881"]
[BlackElo "1660"]
[PlyCount "124"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 Qb6 7. Nb3 e6 8. Bg5
({RR} 8. Bf4 Qc7 9. Qd2 Nc6 10. O-O-O Ne5 11. Nd4 Be7 12. g4 O-O 13. h4 b5 14.
h5 b4 15. Nb1 Nexg4 16. Bg3 Qc5 17. h6 g6 18. Nb3 Qe3 19. Bxd6 Rd8 20. Bxe7
Rxd2 21. N1xd2 Nf2 22. Bc5 Nxd1 {
Anand,V (2788)-Grischuk,A (2720)/Mainz 2005/CBM 109/1/2}) ({RR} 8. Qd3 Nc6 9.
Be3 Qc7 10. Be2 b5 11. O-O Be7 12. f4 O-O 13. Bf3 b4 14. Ne2 e5 15. Rad1 a5 16.
c4 exf4 17. Bxf4 Ne5 18. Qd4 Nfd7 19. Ng3 a4 20. Na1 Nc5 21. Nf5 Ne6 22. Qd2
Nxc4 {
Agishev,A (1961)-Grigoriants,S (2590)/Tashkent 2016/CBM 172 Extra/0-1 (37)})
8... Nc6 $146 ({RR} 8... Nbd7 9. Qd2 Qc7 10. O-O-O b5 11. a3 Rb8 12. g4 h6 13.
Bf4 Ne5 14. Bxe5 dxe5 15. Na2 Be7 16. Qc3 Rb7 17. Qxc7 Rxc7 18. Be2 Nd7 19. c3
h5 20. h3 Nf8 21. Nb4 Ng6 22. Nd3 Bg5+ 23. Kc2 {
Bucinskas,V (2376)-Istratescu,A (2650)/Rogaska Slatina 2011/CBM 145/0-1}) ({RR
} 8... Be7 9. Qd2 Nbd7 10. O-O-O O-O 11. g4 Qc7 12. Be3 Ne5 13. g5 Nfd7 14. f4
Nc4 15. Bxc4 Qxc4 16. Qg2 b5 17. f5 Rd8 18. Rhf1 Qc7 19. Ne2 exf5 20. Nbd4 Ne5
21. Nxf5 Bxf5 22. exf5 Qc4 23. Kb1 {
Green,A (2151)-Zdebskaja,N (2408)/Hastings 2009/CBM 134 Extra/1/2 (36)}) ({RR} 
8... h6 9. Bh4 Be7 10. Bf2 Qc7 11. Qd2 Nc6 12. O-O-O b5 13. Kb1 O-O 14. g4 Ne5
15. Nd4 Nfd7 16. h4 Nb6 17. Bd3 b4 18. Nce2 d5 19. Ng3 Nec4 20. Bxc4 Nxc4 21.
Qd3 dxe4 22. fxe4 Ne5 23. Qe2 {
Demidowicz,M (2138)-Chlost,M (2148)/Lublin 2009/CBM 132 Extra/0-1 (38)}) 9. Qd2
h6 10. Be3 Qc7 11. O-O-O Be7 12. g4 Ne5 13. Qf2 Nexg4 14. Qg1 Nxe3 15. Qxe3 Ng4
16. Qd2 Ne5 17. Be2 Nxf3 18. Qd3 Ne5 19. Qg3 Bf6 20. Kb1 Bd7 21. Rd2 O-O-O 22.
Rhd1 Bc6 23. h4 Qe7 24. Nd4 Bxh4 25. Nxc6 Nxc6 26. Qh3 Bf6 27. Nd5 Qf8 28. Nxf6
gxf6 29. Qc3 Kc7 30. Qxf6 Qe7 31. Qc3 h5 32. Rxd6 Rxd6 33. Rxd6 Qxd6 34. Qxh8
Qd2 35. Qxh5 Qe1+ 36. Bd1 Kb6 37. Qe2 Qxe2 38. Bxe2 Kc5 39. c3 Kd6 40. Kc2 Ke5
41. Kd3 Ne7 42. c4 Ng6 43. Ke3 Ne7 44. b4 Nc8 45. c5 Ne7 46. a4 Nc6 47. b5 axb5
48. axb5 Nd4 49. Bc4 Nc2+ 50. Kd2 Nd4 51. Kd3 Nf3 52. b6 Nd4 53. Ke3 Nc6 54.
Bb5 Nd8 55. Bd7 f5 56. Bc8 f4+ 57. Kd3 f3 58. Bxb7 Nxb7 59. c6 Nc5+ 60. Ke3 Kd6
61. c7 Kd7 62. Kxf3 Na4 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "3.3"]
[White "Metev, Martin"]
[Black "Doychev, Ivan"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1965"]
[BlackElo "1188"]
[PlyCount "123"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 Nc6 7. Nb3 O-O 8.
O-O d5 9. exd5 exd5 10. Bg5 ({RR} 10. Ne2 Be6 11. Bg5 Be7 ({RR} 11... h6 12.
Bh4 Bd6 13. Bg3 Ng4 14. c3 f5 15. Nf4 Bxf4 16. Bxf4 g5 17. Be3 Qd6 18. g3 b6
19. Nd4 f4 20. Nxe6 Qxe6 21. Bd4 Nxd4 22. cxd4 f3 23. Re1 Qd7 24. Qd2 Qf7 25.
h3 Nf6 26. Re3 {
Tuscher,A (1581)-Heldt,M (1983)/Gelsenkirchen 2014/CBM 164 Extra/1-0 (38)}) 12.
Ned4 Nxd4 13. Nxd4 Qb6 14. b3 Rac8 15. Nf5 Bxf5 16. Bxf5 Rcd8 17. Qf3 Rfe8 18.
Rad1 h6 19. Bxf6 Bxf6 20. Rxd5 Rxd5 21. Qxd5 Re5 22. Qd7 Qc5 23. Bd3 Re7 24.
Qd8+ Re8 {Meghara,L (1767)-Ait Ali Yahia,L/Algier 2016/CBM 170 Extra/1-0 (59)})
10... Be7 $146 ({RR} 10... Be6 11. Nb5 Be7 12. c3 h6 13. Bh4 Ne4 14. Bxe7 Qxe7
15. N5d4 Ne5 16. Nxe6 Qxe6 17. Re1 Nxd3 18. Qxd3 Qb6 19. Qd4 Qxd4 20. Nxd4 Rfe8
21. f3 Nc5 22. Rad1 Na4 23. Rxe8+ Rxe8 24. Rb1 {
1/2 Eros,P (2089)-Gelman,G/Goa 2006/CBM 114 Extra}) ({RR} 10... Bxc3 11. bxc3
Ne5 12. Re1 Nxd3 13. Qxd3 h6 14. Bh4 Be6 15. Re3 g5 16. Bg3 Qb6 17. Be5 Ng4 18.
Bd4 Qd6 19. Rh3 Bd7 20. Nc5 Nxf2 21. Kxf2 Bxh3 22. Qxh3 b6 23. Nd7 f5 24. Nxf8
Rxf8 25. Re1 {
Villalba,M (2188)-Aguirre,A (1746)/Buenos Aires 2013/CBM 153 Extra/1-0}) 11.
Rb1 Bg4 12. Qd2 h6 13. Bxf6 Bxf6 14. Nxd5 Bg5 15. Ne3 Bxe3 16. Qxe3 Re8 17. Qf4
Bh5 18. h3 Ne5 19. Bb5 Re6 20. Nc5 Re7 21. Rfe1 Qc7 22. Qb4 a6 23. Ba4 b5 24.
Bb3 Rae8 25. Nxa6 Qa7 26. Nc5 Qb6 27. Rxe5 Rxe5 28. Nd7 Qc6 29. Nxe5 Rxe5 30.
Re1 Rg5 31. Qe4 Qxe4 32. Rxe4 Kh7 33. Rd4 f5 34. c4 bxc4 35. Bxc4 Be8 36. b4
Bc6 37. Bd5 Bb5 38. Bf3 Rg6 39. Rd5 Bc4 40. Rxf5 Bxa2 41. Ra5 Bb1 42. b5 Rb6
43. Be2 Be4 44. f3 Bd5 45. Kf2 Bb7 46. Bd3+ Kg8 47. Ke3 Kf7 48. Be4 Bxe4 49.
Kxe4 Ke7 50. Ra7+ Kf8 51. Ra5 Ke7 52. Kd5 Kd7 53. Kc5 Rg6 54. Ra7+ Kc8 55. g4
Kb8 56. Rd7 Rg5+ 57. Kc6 Rg6+ 58. Rd6 Rg5 59. b6 Kc8 60. b7+ Kb8 61. Rd8+ Ka7
62. Ra8# 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "3.4"]
[White "Krastev, Krasimir N."]
[Black "Dimov, Nikola"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "1707"]
[BlackElo "1551"]
[PlyCount "76"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 O-O 5. e4 d6 6. g3 e5 7. d5 ({RR} 7. dxe5
dxe5 8. Qxd8 Rxd8 9. Bg5 c6 10. Bg2 h6 11. Be3 Re8 12. O-O Na6 13. Rad1 Bf8 14.
h3 Nc5 15. Nd2 a5 16. Nb3 Nfd7 17. Nxc5 Nxc5 18. f4 a4 19. f5 g5 20. Kh2 Nd7
21. Bf3 Bc5 {Zasypkin,A (2195)-Zabotin,A (2491)/Kostroma 2008/EXT 2009/0-1 (58)
}) 7... Nbd7 8. Rb1 $146 ({RR} 8. b4 a5 ({RR} 8... h6 9. Bb2 Nh5 10. Nh4 Bf6
11. Ng2 Ng7 12. Bd3 Be7 13. O-O g5 14. Kh1 Nf6 15. Be2 Bh3 16. Re1 h5 17. Ne3
Kh8 18. f3 Bd7 19. Kg2 Nh7 20. h3 f5 21. g4 fxg4 22. fxg4 h4 23. Nf5 {
Gavriliuk,R-Radzhabov,R/Kiev 2007/EXT 2009/1-0 (40)}) 9. b5 Nc5 10. Bg5 h6 11.
Bxf6 Qxf6 12. a4 ({RR} 12. Bg2 Qe7 13. O-O b6 14. Re1 h5 15. Na4 Nb7 16. Rb1
Bh6 17. Nc3 f6 18. Nh4 Kg7 19. Rb2 Rb8 20. a3 Nd8 21. Nb1 Nf7 22. Nd2 Ng5 23.
Ndf3 Bd7 24. Kh1 Rbd8 25. a4 Bg4 26. Qd3 Rf7 {
Gandolfi,F-Isonzo,D (2175)/Italy 1996/EXT 2000/0-1 (41)}) 12... Qe7 13. Nd2 f5
14. Qe2 Bd7 15. h4 f4 16. Bh3 fxg3 17. fxg3 Bxh3 18. Rxh3 Rf6 19. O-O-O Raf8
20. Rh2 h5 21. Kc2 Qf7 22. Nb3 Nxb3 {
Frankental,D (1769)-Araujo,J (2163)/Joao Pessoa 2016/CBM 171 Extra/0-1 (50)})
8... Nc5 9. Nd2 a5 10. a3 a4 11. Bg2 Nd3+ 12. Ke2 Nc5 13. b4 axb3 14. Nxb3 Nxb3
15. Qxb3 Nd7 16. Be3 f5 17. exf5 gxf5 18. f3 b6 19. a4 Ba6 20. Nb5 Bxb5 21.
axb5 Ra5 22. Bd2 Nc5 23. Qc2 Ra7 24. Ra1 Qa8 25. Rxa7 Qxa7 26. Bb4 e4 27. Bxc5
exf3+ 28. Kxf3 bxc5 29. Re1 Be5 30. Bh3 f4 31. Be6+ Kh8 32. Rxe5 Qa3+ 33. Kg4
dxe5 34. Qe4 Qc3 35. Bf5 fxg3 36. hxg3 Rg8+ 37. Kh5 Qxg3 38. Bg4 Qh2+ 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "3.5"]
[White "Velikov, Nikola"]
[Black "Kostov, Nikolay"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "1179"]
[BlackElo "1648"]
[PlyCount "82"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 Nf6 4. O-O g6 5. d3 d5 6. Nbd2 Bg7 7. e4 dxe4 8.
dxe4 e5 9. c3 O-O 10. Qc2 Qc7 ({RR} 10... Qe7 11. a4 b6 12. Re1 Ba6 13. Bf1
Bxf1 14. Nxf1 h6 15. Ne3 Rfd8 16. Bd2 Qe6 17. Kg2 Rac8 18. Rad1 Nd4 19. Nxd4
cxd4 20. Nf1 d3 21. Qb1 Qc6 22. f3 Qxa4 23. Re3 Rd7 24. Be1 Rcd8 25. Rexd3 {
Roos,H (1948)-Dueckstein,A (2084)/Radebeul 2016/CBM 173 Extra/1/2 (35)}) 11. b3
$146 ({RR} 11. Nc4 Be6 12. Ne3 Rad8 13. Ng5 Bc8 14. f4 h6 15. Nh3 b6 16. f5 Ba6
17. Rd1 Rxd1+ 18. Qxd1 Rd8 19. Qe1 Ne7 20. g4 Bb7 21. Nf2 Nc8 22. Nf1 Nd6 23.
Ng3 Qd7 24. b3 c4 25. Be3 Qc6 {
Waldmann,H (2339)-Kot,J (2361)/Germany 2004/EXT 2006/0-1 (84)}) ({RR} 11. Re1
h6 ({RR} 11... Ne7 12. b3 Re8 13. Bb2 b6 14. Rad1 Bb7 15. a4 Rad8 16. Bf1 a6
17. Bc4 h6 18. Rb1 Nc6 19. Bf1 Ne7 20. Nc4 Nc6 21. Bc1 Bf8 22. h3 Rc8 23. Be3
Nxe4 24. Bxh6 Bxh6 25. Rxe4 f5 26. Ree1 {
De Britto,R (2165)-Sant'Ana,R (2110)/Rio de Janeiro 1999/EXT 2000/0-1 (49)})
12. Bf1 a6 13. a4 b6 14. Nc4 Be6 15. Nfd2 Ne7 16. Na3 Nd7 17. f3 Kh7 18. Bc4
Bh3 19. Bf1 Be6 20. Kg2 Nf6 21. Bc4 Bc8 22. Nf1 Nh5 23. Ne3 f5 24. Nd5 Nxd5 25.
Bxd5 Rb8 {
Collutiis,D (2465)-Szczepkowska,K (2375)/Ortisei 2013/CBM 154 Extra/1/2 (47)})
({RR} 11. a4 h6 12. b4 Be6 13. b5 Na5 14. c4 Nd7 15. Bb2 Nb6 16. Bc3 Nbxc4 17.
Rfc1 Nxd2 18. Nxd2 Rfd8 19. Rab1 Rac8 20. Bf1 Rd7 21. Bxa5 Qxa5 22. Nc4 Qd8 23.
Rd1 Rd4 24. b6 a6 25. Na5 Qd7 {
Manasterski,L-Marszalek,R/Gdynia 1973/EXT 1998/0-1}) 11... b5 12. Ba3 Qb6 13.
Bb2 a5 14. c4 Nb4 15. Qd1 Nd7 16. a3 Nd3 17. Qc2 Nxb2 18. Qxb2 b4 19. axb4 {
Äèàãðàììà #} Qxb4 (19... cxb4 $1 $19) 20. Ra4 Qb6 21. Rfa1 Nb8 22. Nb1 Bd7 23.
R4a2 Nc6 24. Nc3 Rfb8 25. Ra3 Be6 26. Nd5 Qb7 27. Ne1 a4 28. Nd3 Bf8 29. Nc1
Nd4 30. f4 axb3 31. Rxa8 Rxa8 32. Rxa8 Qxa8 33. f5 Bxd5 34. exd5 Bh6 35. d6 Qa5
36. d7 Bg5 37. Nd3 Qa2 38. Kf1 gxf5 39. h4 Bd8 40. Ke1 e4 41. Kd1 exd3 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.23"]
[Round "3.6"]
[White "Ivanov, Oleg M."]
[Black "Georgiev, Nikolay Zh."]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "1548"]
[BlackElo "1572"]
[PlyCount "40"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. c4 c6 2. Nf3 d5 3. cxd5 cxd5 4. Nc3 Nf6 5. d4 Nc6 6. Bg5 Bg4 ({RR} 6... a6
7. Rc1 Nh5 8. Bd2 Nf6 9. Bg5 Nh5 10. Bd2 {
1/2 Ortega,L (2473)-Agrest,E (2585)/Arvier 2010/CBM 138 Extra}) 7. Ne5 ({RR} 7.
e3 e6 8. Bd3 Be7 9. O-O O-O 10. h3 Bh5 11. Be2 Re8 12. Bf4 Bd6 13. Bxd6 Qxd6
14. Nb5 Qe7 15. Rc1 a6 16. Nc3 Rad8 17. a3 h6 18. b4 b5 19. Bd3 Rc8 20. g4 Bg6
21. Bxg6 fxg6 {
Van Niekerk,N (1053)-Visser,A (1118)/Waterkloof 2015/CBM 166 Extra/1/2 (31)})
7... Nxe5 8. dxe5 Ne4 9. Qxd5 $146 ({RR} 9. Nxe4 dxe4 10. Qa4+ Bd7 11. Qxe4 Bc6
12. Qc2 Qa5+ 13. Bd2 Qxe5 14. Bc3 Qg5 15. f3 e6 16. Bd2 Qh4+ 17. g3 Qh5 18.
O-O-O Rc8 19. Kb1 Qg6 20. Qxg6 hxg6 21. e4 Bc5 22. Bc3 f6 23. Bc4 Ke7 {
Cecchini,M-Greco,U/Robecchetto 2005/CBM 110 Extra/1-0 (51)}) 9... Nxg5 10.
O-O-O Qxd5 11. Nxd5 Rc8+ 12. Nc3 Ne4 13. f3 Nxc3 14. bxc3 Bd7 15. Kb2 e6 16. e4
Bc5 17. Be2 Ke7 18. g4 Rhd8 19. f4 Bc6 20. Bd3 Rxd3 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "4.1"]
[White "Chowaniec, Artur"]
[Black "Babatov, Martin"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "1660"]
[BlackElo "1737"]
[PlyCount "112"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. Bc4 e6 6. h3 Bxf3 7. Qxf3 Nf6 8.
Nxf6+ Qxf6 9. Qxf6 gxf6 10. d4 Bd6 11. O-O Nd7 12. Re1 O-O-O 13. Be3 Rhg8 14.
c3 $146 ({RR} 14. Bd3 f5 15. Bd2 Rg7 16. Be2 Nf6 17. Bf3 Bc7 18. c3 c5 19. Re2
cxd4 20. cxd4 Nd5 21. Rc1 Kb8 22. Ree1 Bf4 23. Rc2 Rgg8 24. Rec1 Bxd2 25. Rxd2
Rd7 26. Rc5 Nf4 27. Kf1 Rgd8 28. Rc4 Ng6 {
Dansker,G-Nur,N/Bratislava 1993/TD/0-1 (65)}) 14... f5 15. Kh1 Nf6 16. b4 Ne4
17. f3 Nxc3 18. a3 Nd5 19. b5 Bg3 20. Re2 Nxe3 21. Rxe3 Rxd4 22. Bxe6+ fxe6 23.
bxc6 Rgd8 24. cxb7+ Kb8 25. Rf1 Rd1 26. Kg1 Rxf1+ 27. Kxf1 Rd1+ 28. Ke2 Re1+
29. Kd3 Rxe3+ 30. Kxe3 Kxb7 31. f4 e5 32. fxe5 Bxe5 33. Kd3 Bd6 34. Kd4 Bxa3
35. Ke5 Kc6 36. Kxf5 Kd5 37. Kf6 Bc1 38. g4 h6 39. h4 a5 40. g5 hxg5 41. hxg5
Bxg5+ 42. Kxg5 a4 43. Kf4 a3 44. Ke3 a2 45. Kd2 a1=R 46. Ke3 Ra4 47. Kf3 Re4
48. Kg3 Ke5 49. Kf3 Kf5 50. Kg3 Rf4 51. Kh3 Rg4 52. Kh2 Kf4 53. Kh3 Kf3 54. Kh2
Rg8 55. Kh1 Kf2 56. Kh2 Rh8# 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "4.2"]
[White "Krustev, Krasimir S."]
[Black "Metev, Martin"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1970"]
[BlackElo "1965"]
[PlyCount "49"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e6 2. Nf3 d5 3. Nc3 d4 4. Ne2 c5 5. c3 dxc3 6. bxc3 Nc6 7. Ng3 ({RR} 7.
d4 Nf6 8. Ng3 cxd4 9. cxd4 Bb4+ 10. Bd2 Qa5 11. Rb1 Bxd2+ 12. Qxd2 Ke7 13. Bb5
Bd7 14. Ne5 Qxd2+ 15. Kxd2 Na5 16. Rhc1 Rac8 17. Nxd7 Nxd7 18. Bxd7 Kxd7 19.
Nh5 b6 20. g3 g6 21. Nf4 Rhd8 {
Sigurjonsson,G (2475)-Hort,V (2600)/Hastings 1976/EXT 1999/1/2}) 7... e5 $146 (
{RR} 7... Bd6 8. Bb5 Bd7 9. O-O a6 10. Ba4 b5 11. Bc2 Nge7 12. d4 cxd4 13. cxd4
O-O 14. e5 Bb4 15. Bxh7+ Kh8 16. Bc2 Nd5 17. Ng5 g6 18. Qg4 Kg7 19. Nh5+ Kg8
20. Nxf7 Rxf7 21. Qxg6+ Kf8 22. Bh6+ {
Sekandar,K (2130)-Van Breda,T/Utrecht 2015/CBM 166 Extra/1-0}) ({RR} 7... g6 8.
d4 Bg7 9. Bb2 Qa5 10. Qd2 Bh6 11. Qd3 cxd4 12. Nxd4 Nge7 13. Nb3 Qc7 14. c4 e5
15. Be2 O-O 16. O-O a5 17. a4 Rd8 18. Qc3 Nd4 19. Nxd4 exd4 20. Qc2 Be6 21.
Rad1 Nc6 22. Ba3 {
Bhuvaneshwari,R (1708)-Naik,R (2014)/Glasgow 2014/CBM 161 Extra/0-1 (42)}) ({RR
} 7... Qa5 8. Be2 Nf6 9. O-O h5 10. h4 Bd6 11. Ng5 Bxg3 12. fxg3 c4 13. a4 Ne5
14. Ba3 Bd7 15. Kh1 Bc6 16. Bd6 Rd8 17. Bxe5 Qxe5 18. Rf4 Nxe4 19. Nxe4 Bxe4
20. Bxc4 Bc6 21. d4 Qe3 22. Qe1 {
Gurieli,N (2329)-Bogumil,T (2118)/Porto 2014/CBM 159 Extra/0-1 (75)}) 8. Bc4
Bd6 9. Nh5 g6 10. Ng3 Nf6 11. d3 O-O 12. Bh6 Re8 13. Ng5 Be6 14. Nxe6 fxe6 15.
h4 Bf8 16. Bxf8 Kxf8 17. h5 g5 18. h6 Na5 {Äèàãðàììà #} 19. Bb5 (19. Qc1 $1 $18
) 19... Nc6 20. Qd2 g4 21. Qg5 Ke7 22. Bxc6 bxc6 23. Qxe5 Qxd3 24. Rd1 Qb5 25.
Nf5+ 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "4.3"]
[White "Georgiev, Nikolay Zh."]
[Black "Kostov, Nikolay"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1572"]
[BlackElo "1648"]
[PlyCount "153"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Bc4 c6 5. Nc3 Bg4 6. f3 cxd5 7. Nxd5 ({RR} 
7. Bb3 d4 8. fxg4 dxc3 9. bxc3 e6 10. Qf3 Nc6 11. Ne2 Bd6 12. d4 h6 13. O-O Qc7
14. g3 O-O-O 15. Bf4 e5 16. Be3 Kb8 17. g5 e4 18. Qf5 Ne7 19. Qb5 Ng4 20. Bf4
hxg5 21. Bxd6 Qxd6 {
Tokatlian,G (1922)-Medina,G (2012)/Costanera 2016/EXT 2017/0-1 (33)}) 7... Nxd5
8. fxg4 e6 9. Nf3 Nc6 $146 ({RR} 9... Bc5 10. d4 Bb6 ({RR} 10... Bb4+ 11. c3
Nxc3 12. bxc3 Bxc3+ 13. Bd2 Bxa1 14. Qxa1 Nc6 15. O-O Rc8 16. d5 {
1-0 Kotz,R-Hashemi,A/Germany 1997/EXT 2004}) 11. O-O Nc6 12. c3 O-O 13. Bd3 g6
14. Ng5 h6 15. Ne4 Kg7 16. g5 h5 17. Nf6 Rh8 18. Kh1 Bc7 19. Qf3 Nxf6 20. gxf6+
Kg8 21. Bf4 Bxf4 22. Qxf4 e5 23. Qg5 Rh7 24. Bc4 {
Kun,G-Visloczki,J/Hungary 1994/TD/1-0}) 10. d4 Qc7 11. Bxd5 Qa5+ 12. c3 Qxd5
13. O-O h5 14. g5 Bd6 15. Qb3 Qxb3 16. axb3 O-O 17. Be3 a6 18. Nd2 b5 19. Ne4
Bc7 20. b4 a5 21. bxa5 Nxa5 22. Nd2 Nc4 23. Rxa8 Rxa8 24. Nxc4 bxc4 25. g3 Bd6
26. Bf4 Be7 27. h4 Ra7 28. Be5 Rb7 29. Rf2 Rb5 30. Kf1 Ra5 31. Ke2 Ra2 32. Kd1
Ra5 33. Kc2 Rb5 34. Rf1 Ra5 35. Rb1 Ra2 36. Kc1 f6 37. gxf6 gxf6 38. Bf4 Kf7
39. b4 Kg6 40. b5 Ba3+ 41. Kd1 Rg2 42. b6 Rg1+ 43. Kc2 Rg2+ 44. Bd2 Bd6 45. b7
Bb8 46. Rb4 Rxg3 47. Kd1 Rg1+ 48. Be1 Kf5 49. Ke2 Ke4 50. Rxc4 Rg7 51. Rb4 f5
52. Rb6 Rg2+ 53. Kf1 Rg7 54. Rxe6+ Kf3 55. Rb6 Ke4 56. Bf2 f4 57. Ke2 f3+ 58.
Kd2 Rg2 59. Ke1 Kd3 60. Rh6 Rh2 61. Kf1 Rh1+ 62. Bg1 Bh2 63. Rh8 Rxg1+ 64. Kf2
Rb1 65. Rxh5 Kxc3 66. d5 Rxb7 67. Kxf3 Rd7 68. Ke4 Re7+ 69. Kf5 Kc4 70. Kf6 Re4
71. Kg6 Rd4 72. Kf7 Rxd5 73. Rxd5 Kxd5 74. h5 Bf4 75. Kg6 Bd2 76. h6 Bxh6 77.
Kxh6 1/2-1/2

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "4.4"]
[White "Dimov, Nikola"]
[Black "Andreev, Dobrotich"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "1551"]
[BlackElo "1881"]
[PlyCount "113"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8. Nf3
Nd7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. O-O-O e6 14. Ne4
O-O-O 15. g3 Nc5 16. Nxc5 Bxc5 17. Bf4 Qa5 $146 ({RR} 17... Bd6 18. Bxd6 ({RR} 
18. Be5 Bxe5 19. Nxe5 Kb8 ({RR} 19... c5 20. Qc4 Rd5 21. f4 Ne4 22. Rhg1 Nd6
23. Qa4 c4 24. Kb1 Rd8 25. c3 Ra5 26. Qc2 f6 27. Nf3 Qc6 28. Qe2 Re8 29. g4 Qa4
30. a3 Nb5 31. Kc1 Qb3 {1/2 Belinkov,A-Podgaets,M/Riga 1968/MCD}) 20. Qe2 Rhe8
21. Rh4 Rd5 22. Rd3 Ng8 23. Rb3 Red8 24. c4 R5d6 25. c5 Rd5 26. Qa6 Ka8 27. Qa4
a6 28. Rb6 Ne7 29. Nxf7 Rf8 30. Rf4 Nc8 31. Nd6 Rxf4 32. Rxb7 Qxb7 {
Bashaer,K (1549)-Mendis,D (1739)/Abu Dhabi 2016/CBM 171 Extra/1-0 (48)}) ({RR} 
18. Ne5 c5 19. Qe2 Nd5 20. Rh4 Rhe8 21. Rg4 f6 22. Ng6 c4 23. c3 b5 24. Bxd6
Rxd6 25. Re4 b4 26. cxb4 c3 27. Qb5 cxb2+ 28. Kxb2 Qc3+ 29. Kb1 Rc6 30. Re2 Kc7
31. Rb2 Qf3 32. Qa5+ Kd6 {
Petrov,V (1793)-Andreev,D (2065)/Sofia 2011/CBM 142 Extra/0-1 (32)}) 18... Rxd6
{1/2 Matanovic,A-Hort,V/Vinkovci 1968/MCD} ({RR} 18... Qxd6 19. Ne5 Rhf8 20. f4
Kb8 21. Qe2 Nd7 22. g4 Nxe5 23. dxe5 Qb4 24. Qe3 Rd5 25. Rxd5 cxd5 26. Rd1 Rc8
27. Rd4 Qb5 28. Qf2 f6 29. exf6 gxf6 30. Qd2 Qf1+ 31. Qd1 Qxd1+ 32. Rxd1 Kc7
33. f5 {Reeve,J-Taylor,G/Vancouver 1982/EXT 2003/0-1 (64)})) 18. Kb1 Bd6 19.
Bxd6 Rxd6 20. Ne5 Qc7 {Äèàãðàììà #} 21. c4 (21. Qa3 $142 $16) 21... Rhd8 22.
Qe3 c5 23. d5 exd5 24. cxd5 Nxd5 25. Qf3 f6 26. Nc4 R6d7 27. Qg4 Kb8 28. Rc1
Nb6 29. Qe2 Rd4 30. Na5 Rd2 31. Qf3 Na4 32. Nc4 R2d3 33. Qf5 b5 34. Ne3 Rd2 35.
Rc2 Qe5 36. Qxe5+ fxe5 37. Nf5 c4 38. Kc1 c3 39. bxc3 Rxc2+ 40. Kxc2 Rc8 41.
Nxg7 Rxc3+ 42. Kb1 Ra3 43. Nf5 Rf3 44. Nxh6 Rxf2 45. Ng4 Nc3+ 46. Kc1 Rxa2 47.
Rh4 b4 48. Nxe5 Ne2+ 49. Kd1 Nc3+ 50. Kc1 a5 51. Nc6+ Kc7 52. Nxb4 axb4 53.
Rxb4 Ne2+ 54. Kb1 Nc3+ 55. Kc1 Ne2+ 56. Kd1 Nxg3 57. Rh4 1/2-1/2

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "4.6"]
[White "Doychev, Ivan"]
[Black "Ivanov, Oleg M."]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1188"]
[BlackElo "1548"]
[PlyCount "122"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 d5 2. exd5 c6 3. Nf3 cxd5 4. d4 Nc6 5. Bb5 a6 6. Bxc6+ bxc6 7. Ne5 Qb6 8.
O-O Nf6 9. Nc3 e6 10. Rb1 $146 ({RR} 10. Na4 Qc7 11. Nd3 Bd6 12. h3 a5 13. Re1
Ba6 14. b3 Ne4 15. c4 O-O 16. Bb2 f5 17. Rc1 Qf7 18. f3 Nf6 19. Qe2 Rfe8 20.
Qd2 Nh5 21. Ne5 Qb7 22. cxd5 cxd5 23. Nc5 Qe7 24. Rc2 Qh4 {
Baulig,B (2141)-Kierzek,M (2130)/Germany 2005/EXT 2006/1/2 (33)}) 10... Bd6 11.
Bf4 Qc7 12. Re1 O-O 13. Bg5 Ne8 14. Nf3 c5 15. dxc5 Bxc5 16. Bh4 f6 17. b4
Bxf2+ 18. Bxf2 Qxc3 19. Bc5 Qc4 20. Bxf8 Kxf8 21. a4 Nd6 22. Qe2 Qc7 23. Rf1 e5
24. Rbd1 d4 25. Nxe5 Qb6 26. Qf2 Kg8 27. Nf3 Qxb4 28. Qxd4 Qxd4+ 29. Rxd4 Nf7
30. Re1 Bb7 31. Rd7 Bxf3 32. gxf3 Ne5 33. Rxe5 fxe5 34. Re7 Rc8 35. Rxe5 Rxc2
36. Ra5 Ra2 37. Rxa6 Kf7 38. a5 g5 39. Kf1 Rxh2 40. Ra7+ Kg6 41. a6 Ra2 42. Ra8
Kh5 43. a7 Kh4 44. Ke1 h5 45. Kf1 Kg3 46. f4 {Äèàãðàììà #} Kf3 (46... g4 $19)
47. Ke1 gxf4 48. Rh8 Rxa7 49. Rxh5 Ra1+ 50. Kd2 Kf2 51. Rh2+ Kg3 52. Rh8 f3 53.
Rg8+ Kf2 54. Re8 Kf1 55. Rh8 Ra2+ 56. Ke3 f2 57. Rg8 Re2+ 58. Kf3 Ke1 59. Ra8
f1=Q+ 60. Kg3 Rg2+ 61. Kh3 Qh1# 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "5.1"]
[White "Chowaniec, Artur"]
[Black "Krustev, Krasimir S."]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1660"]
[BlackElo "1970"]
[PlyCount "112"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 d6 6. Nxc6 bxc6 7. Bc4 Be7 8.
O-O O-O 9. Bf4 Be6 10. Bxe6 fxe6 11. e5 ({RR} 11. Qe2 e5 12. Bg5 Kh8 13. f4
exf4 14. Bxf4 Nd7 15. Be3 Bf6 16. Qc4 Ne5 17. Qe2 Qe8 18. Rf2 Qe6 19. Raf1 Kg8
20. Qh5 Ng4 21. Rf3 Nxe3 22. Rxe3 Bd4 23. Qe2 Bxe3+ 24. Qxe3 Rxf1+ 25. Kxf1
Qc4+ {Arkhipov,V (1884)-Skurokin,D (1890)/Tula 2016/CBM 171 Extra/0-1 (32)})
11... Nd5 12. Nxd5 exd5 13. exd6 $146 ({RR} 13. Qd4 Rb8 14. Bg3 a5 15. a3 dxe5
16. Bxe5 c5 17. Qa4 Bd6 18. f4 Bxe5 19. fxe5 Qg5 20. Rfe1 Rbe8 21. e6 Qf5 22.
Qd7 Qf2+ 23. Kh1 Qf5 24. h3 g5 25. Rad1 d4 26. Rd3 Qf2 27. Red1 g4 {
Toth,L (1822)-Gabor,A (1909)/Hungary 2010/EXT 2011/1-0 (31)}) ({RR} 13. Qg4
dxe5 14. Bxe5 Bf6 15. Qe6+ ({RR} 15. Rae1 Qc8 16. Qxc8 Raxc8 17. Bxf6 Rxf6 18.
Re7 Kf8 19. Rfe1 Rf7 20. R7e6 Rf6 21. Rxf6+ gxf6 22. Re6 Re8 23. Rxe8+ Kxe8 24.
g4 Ke7 25. f4 Ke6 26. Kf2 d4 27. Kf3 Kd5 28. h4 c5 29. h5 c4 {
Manakova,M (2306)-Markidou,C (1971)/Aghios Kirykos 2010/CBM 137 Extra/1-0 (41)}
) 15... Kh8 16. f4 Qe8 17. Qxe8 {
1/2 Mika,J (2156)-Dosztan,J (2230)/Hungary 2012/EXT 2013}) 13... Rxf4 14. dxe7
Qxe7 15. c3 Raf8 16. Qd2 Qd6 17. Rae1 Rh4 18. g3 Rh6 19. Qe3 Qd7 20. f4 Qh3 21.
Rf2 Rg6 22. Qxa7 h5 23. Qe3 h4 24. Rg2 Qg4 25. Qe2 Qf5 26. Qe5 Qh3 27. Qh5 Rh6
28. Qe2 Qf5 29. g4 Qxf4 30. Rf2 Qxf2+ 31. Qxf2 Rxf2 32. Kxf2 Kf7 33. Re3 c5 34.
Re5 Rd6 35. Rh5 c4 36. Re5 c5 37. h3 Kf6 38. Re2 d4 39. Rd2 d3 40. b3 Ke5 41.
bxc4 Ke4 42. Ke1 Ke3 43. a4 Rb6 44. Rd1 Rb2 45. Kf1 Ra2 46. Re1+ Kd2 47. Re7
Kxc3 48. Rxg7 Ra1+ 49. Kf2 d2 50. Rd7 d1=Q 51. Rxd1 Rxd1 52. Kf3 Kxc4 53. Kf4
Kb4 54. Kg5 c4 55. Kxh4 c3 56. g5 c2 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "5.2"]
[White "Babatov, Martin"]
[Black "Georgiev, Nikolay Zh."]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1737"]
[BlackElo "1572"]
[PlyCount "78"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. Nf3 Bg4 5. dxc5 $146 ({RR} 5. Be2 Bxf3 6. Bxf3
e6 7. c4 Nf6 8. Nc3 cxd4 9. exd4 dxc4 10. O-O Be7 11. Bxc6+ bxc6 12. Qa4 O-O
13. Qxc4 Rc8 14. a3 Bd6 15. Bg3 Bxg3 16. fxg3 Nd5 17. Rae1 Qg5 18. Ne4 Qe7 19.
b4 a5 {De Labourdonnais,L-McDonnell,A/London 1834/EXT 2002/0-1 (36)}) ({RR} 5.
c3 e6 ({RR} 5... Qb6 6. Qb3 Qxb3 7. axb3 e6 8. Ne5 Nxe5 9. Bxe5 f6 10. Bg3 Nh6
11. f3 Bh5 12. c4 cxd4 13. exd4 Bb4+ 14. Nc3 O-O 15. Bd3 Bg6 16. Bxg6 hxg6 17.
O-O Nf5 18. Nb5 Nxg3 19. hxg3 dxc4 20. bxc4 {
Spielmann,R-Van Doesburgh,D/Zandvoort 1936/HCL/1/2}) 6. Qb3 ({RR} 6. Nbd2 cxd4
7. exd4 Bd6 8. Bxd6 Qxd6 9. Be2 Nf6 10. O-O Bxf3 11. Bxf3 g6 12. g3 h5 13. h4
e5 14. dxe5 Nxe5 15. Re1 O-O 16. Nb3 Nxf3+ 17. Qxf3 Rfe8 18. Nd4 Re4 19. Rxe4
dxe4 20. Qe2 Re8 {
Guenadez,A (1606)-Sethebe,S (1098)/Port Elizabeth 2016/CBM 174 Extra/1-0 (33)})
6... Qc8 7. Nbd2 Nf6 8. Ne5 Be7 9. Nxg4 Nxg4 10. Be2 Nf6 11. O-O O-O 12. dxc5
Bxc5 13. Bg5 Nd7 14. Rac1 Qc7 15. Rfd1 Bd6 16. Nf3 Nde5 17. Nd4 Na5 18. Qc2 a6
19. e4 Ng6 {Kramnik,V (2785)-Gelfand,B (2736)/Moscow 2007/EXT 2008/1-0}) 5...
e5 6. Bg5 Bxf3 7. Qxf3 Qxg5 8. Qxd5 Qd8 9. Qc4 Qa5+ 10. Nc3 Bxc5 11. O-O-O Nf6
12. Nb5 Be7 13. g4 O-O 14. g5 a6 15. Nd6 Bxd6 16. gxf6 Qb4 17. Qe2 g6 18. a3
Qc5 19. b4 Nxb4 20. axb4 Qxb4 21. Bh3 Qc3 22. Rxd6 Qa1+ 23. Kd2 Qxh1 24. Qg4 h5
25. Qg5 Kh7 26. Bf5 Rad8 27. Qxh5+ Kg8 28. Bxg6 Rxd6+ 29. Kc3 Qa1+ 30. Kb3 Qb1+
31. Ka3 Qa1+ 32. Kb3 Rb6+ 33. Kc4 Rc8+ 34. Kd5 Rb5+ 35. Ke4 Qh1+ 36. f3 Rc4+
37. Kd3 Qf1+ 38. Kd2 Qf2+ 39. Kd1 Rb1# 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "5.3"]
[White "Kostov, Nikolay"]
[Black "Dimov, Nikola"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1648"]
[BlackElo "1551"]
[PlyCount "121"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. e3 g6 3. g3 Bg7 ({RR} 3... d5 4. Bg2 Bg7 5. Nf3 Bg4 6. h3 Bf5 7.
O-O O-O 8. Nbd2 Ne4 9. c4 c6 10. c5 Nd7 11. Nxe4 Bxe4 12. Ng5 Bxg2 13. Kxg2 e5
14. Nf3 e4 15. Ng1 f5 16. Ne2 Kh8 17. b4 a6 18. a4 {
Zekic,P-Smetisko,J (1820)/Trogir 2016/EXT 2017/0-1 (52)}) 4. Bg2 O-O 5. Nf3 ({
RR} 5. Ne2 d6 6. O-O e5 7. Nd2 Nc6 8. b3 exd4 9. exd4 Bg4 10. Bb2 Re8 11. Nf3
Qd7 12. Nf4 Nh5 13. Nxh5 Bxh5 14. Qd3 Bg4 15. c3 Re7 16. Rfe1 Rae8 17. Qd2
Rxe1+ {1/2 Matnadze,A (2376)-Saldano Dayer,H (2482)/La Roda 2005/CBM 105 Extra}
) 5... c5 $146 ({RR} 5... d6 6. O-O Nbd7 ({RR} 6... c6 7. Nbd2 Bg4 8. a3 Nbd7
9. b4 a6 10. Bb2 d5 11. Qc1 Ne4 12. c4 Nxd2 13. Nxd2 Rc8 14. c5 e5 15. f3 Be6
16. Nb3 exd4 17. Bxd4 Bxd4 18. Nxd4 Re8 19. Re1 Ne5 20. Qc3 Qd7 21. Ra2 {
Zehentner,F (1529)-Wuketich,S (1022)/Vienna 2011/EXT 2013/1-0 (62)}) 7. b3 ({RR
} 7. c4 c5 8. d5 Nb6 9. Nfd2 Rb8 10. Nc3 e5 11. e4 Ne8 12. a3 f5 13. b4 Nd7 14.
bxc5 Nxc5 15. Nb3 Nxe4 16. Nxe4 fxe4 17. Bxe4 Nf6 18. Bg2 Bg4 19. Qe1 Qc7 20.
Nd2 Bf5 21. Qe3 b6 {
Talpa,P (1854)-Valenta,V (2075)/Znojmo 2002/EXT 2003/0-1 (58)}) 7... e5 8. Bb2
e4 9. Nfd2 Re8 10. c4 Nf8 11. Nc3 Bf5 12. Qc2 Qe7 13. Rac1 h5 14. Nd5 Nxd5 15.
cxd5 Rac8 16. b4 Nh7 17. Rfe1 Nf6 18. Qb3 Qd7 19. a4 Bh3 20. Bh1 {
Aljechin,Y (2220)-Rutman,A (2315)/Ozery 1997/EXT 2001/0-1 (45)}) 6. O-O cxd4 7.
exd4 d6 8. h3 Qc7 9. Nc3 a6 10. Re1 Re8 11. Bg5 Nbd7 12. Qd2 Rb8 13. Re2 b5 14.
a3 Bb7 15. Ne1 Nb6 16. b3 Nbd5 17. Nxd5 Nxd5 18. Bxd5 Bxd5 19. Qe3 f6 20. Bh6
Bh8 21. h4 Qd7 22. Kh2 e5 23. dxe5 dxe5 24. Rd1 Qc6 25. Nd3 Bf3 26. Nb4 Qb7 27.
Red2 Bxd1 28. Rxd1 Red8 29. Re1 Qb6 30. Qf3 f5 31. Nc6 e4 32. Ne7+ Kf7 33. Rxe4
Qf6 34. Re2 Rd7 35. Bg5 Qc3 36. Re3 Qxc2 37. Re2 Qd3 38. Re3 Qd1 39. Qf4 Qd6
40. Qf3 Be5 41. Nxf5 gxf5 42. Qxf5+ Kg8 43. Qg4 Rg7 44. Qe4 Bf6 45. Bf4 Qd8 46.
Bxb8 Qxb8 47. Qc6 Be7 48. Qxa6 Bc5 49. Qe6+ Kh8 50. Rc3 Qf8 51. f4 Bxa3 52. Rc8
Qxc8 53. Qxc8+ Rg8 54. Qc3+ Rg7 55. b4 Bxb4 56. Qxb4 Rf7 57. Qxb5 Kg8 58. g4
Kg7 59. Kg3 Ra7 60. Qb2+ Kg8 61. Qb8+ 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "5.4"]
[White "Metev, Martin"]
[Black "Simov, Zahari"]
[Result "0-1"]
[ECO "B54"]
[WhiteElo "1965"]
[BlackElo "1467"]
[PlyCount "122"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Bd7 ({RR} 5... e5 6. Nf5 Bxf5
7. exf5 Nd7 8. g4 Ne7 9. Bg2 Nc6 10. Be3 Be7 11. Nd5 O-O 12. Qd2 Nf6 13. Nxf6+
Bxf6 14. g5 Be7 15. c3 Rc8 16. Be4 d5 17. Bxd5 Qa5 18. Be4 Rfd8 19. Qe2 Nd4 20.
Qg4 {Fier,A (2527)-Rodriguez Vila,A (2533)/Santos 2008/CBM 124 Extra/1-0 (34)})
6. Be3 ({RR} 6. Bc4 Nc6 7. O-O g6 8. Nf3 Bg7 9. h3 Nf6 10. Re1 O-O 11. a3 Qc8
12. Kh2 Be6 13. Nd5 Bxd5 14. exd5 Ne5 15. Nxe5 dxe5 16. Ba2 Rd8 17. Rxe5 Ng4+
18. hxg4 Bxe5+ 19. Kh1 Bg7 20. c3 Qd7 {
Azlan,A-Hasfarizal,F (1469)/Dewan Astana 2015/EXT 2017/0-1 (42)}) 6... Nf6 7.
Be2 g6 $146 ({RR} 7... Qc7 8. O-O e5 9. Nb3 Bc6 10. Nd5 Bxd5 11. exd5 Nbd7 12.
c4 Rc8 13. Rc1 Qb8 14. f4 Qa8 15. a4 a5 16. f5 Ne4 17. Bd3 Nec5 18. Nxc5 Nxc5
19. Bxc5 Rxc5 20. f6 Qa7 21. Kh1 g6 22. h4 {
Mijatovic,A (1408)-Van Orsouw,S (1311)/Willingen 2003/CBM 094 Extra/1/2 (32)})
8. Qd2 Bg7 9. f3 O-O 10. O-O-O b5 11. g4 b4 12. Nb1 Qa5 13. a3 Nc6 14. Nxc6
Bxc6 15. axb4 Qc7 16. Bh6 Rfb8 17. Bxg7 Kxg7 18. Qc3 Kg8 19. g5 Nh5 20. Qd2 Qb6
21. c3 a5 22. bxa5 Rxa5 23. Bc4 Ra1 24. Rde1 Nf4 25. h4 Ba4 26. Rh2 e5 27. h5
Bb3 28. Bxb3 Qxb3 29. hxg6 fxg6 30. Reh1 Rb7 31. Qxd6 Ra8 32. Qd1 Qb5 33. Rd2
Nd3+ 34. Kc2 Rd8 35. Qf1 Qxb2+ 36. Kd1 Qxb1+ 37. Ke2 Nf4+ 38. Ke3 Qb6+ 39. Rd4
Ne6 40. Kf2 exd4 41. cxd4 Qxd4+ 42. Kg3 Qe5+ 43. f4 Qc3+ 44. Kg4 Rf8 45. f5
gxf5+ 46. exf5 Qd4+ 47. Kh5 Nf4+ 48. Kg4 Nd3+ 49. Kh5 Rb4 50. Qf3 Nf4+ 51. Kg4
Ne2+ 52. Kh5 Nf4+ 53. Kg4 Ng6+ 54. Kg3 Qf4+ 55. Qxf4 Nxf4 56. f6 Ne6 57. Rh5
Ra8 58. f7+ Kg7 59. Kf3 Ra3+ 60. Ke2 Rb2+ 61. Kd1 Ra1# 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "5.5"]
[White "Ivanov, Oleg M."]
[Black "Velikov, Nikola"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1548"]
[BlackElo "1179"]
[PlyCount "65"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. c4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Bg5 Nbd7 7. Qd2 e5 8. dxe5
({RR} 8. d5 Nc5 9. Bd3 a5 10. O-O Qd7 11. h3 Ne8 12. Rad1 Nxd3 13. Qxd3 f5 14.
exf5 Qxf5 15. Qxf5 Bxf5 16. Rfe1 Nf6 17. Nb5 Rf7 18. Bxf6 Bxf6 19. b3 Raf8 20.
Rd2 Bd8 21. a4 g5 22. Nc3 g4 {
Simon,L (1135)-Yudin,Y (1407)/Prague 2016/CBM 174 Extra/1/2 (33)}) 8... dxe5 9.
O-O-O ({RR} 9. Rd1 Re8 10. Be2 c6 11. O-O Qc7 12. Qd6 Qxd6 13. Rxd6 Nh5 14.
Rfd1 Nc5 15. Rd8 Bg4 16. Rxa8 Rxa8 17. Be7 Nd7 18. h3 Be6 19. Ng5 Nhf6 20. Nxe6
fxe6 21. c5 Bf8 22. Bxf8 Kxf8 23. b4 a5 {
Khromov,V (2240)-Riazantsev,A (2350)/Moscow 1996/CBM 055 Extra/0-1 (36)}) 9...
Re8 10. g3 $146 ({RR} 10. h4 h5 ({RR} 10... c6 11. h5 Qe7 12. hxg6 fxg6 13. Nh2
Nc5 14. Be2 Ncxe4 15. Nxe4 Nxe4 16. Bxe7 Nxd2 17. Rxd2 Rxe7 18. Rd8+ Kf7 19.
Nf3 h6 20. Nd2 Rd7 21. Rxd7+ Bxd7 22. Ne4 Bf8 23. Rd1 Be6 24. b3 Bf5 25. Bf3 {
Van der Wal,F-Lane,G (2421)/Penrith 2003/EXT 2004/0-1 (40)}) 11. g4 hxg4 12.
Nh2 c6 13. Nxg4 Qc7 14. Nxf6+ Nxf6 15. Be2 Be6 16. Rdg1 Kf8 17. h5 Nxh5 18.
Bxh5 gxh5 19. Rxh5 Qd7 20. Qe3 f6 21. Bh6 Bxh6 22. Qxh6+ Ke7 23. Rd1 Qc8 24.
Qg7+ Bf7 {Rubingh,O (2260)-Kottke,M (2225)/Amsterdam 2000/EXT 2002/1-0}) ({RR} 
10. Be2 c6 11. h4 Qb6 12. Be3 Qc7 13. c5 Ng4 14. h5 Nxe3 15. Qxe3 Nf6 16. Nd2
Bg4 17. Bxg4 Nxg4 18. Qf3 Nf6 19. hxg6 fxg6 20. Nc4 Rf8 21. Qh3 Rad8 22. Nd6
Rd7 23. Ne2 Rfd8 24. f4 exf4 {
Moreno,J-Amed,S/Buenos Aires 2002/CBM 090 Extra/0-1 (37)}) 10... c6 11. h4 Qc7
12. Be2 Ng4 13. Rdf1 Ngf6 14. Bh6 Bh8 15. h5 Nxh5 16. Rxh5 Nf6 17. Rh4 Rd8 18.
Qe3 Ng4 19. Qc5 Bf6 20. Bg5 Bxg5+ 21. Nxg5 h5 22. Nd5 Qd6 23. Qxd6 Rxd6 24.
Ne7+ Kf8 25. Nxc8 Rxc8 26. Bxg4 hxg4 27. Rxg4 Rcd8 28. Nf3 Re8 29. Rd1 Rf6 30.
Rd3 Rfe6 31. Ng5 R6e7 32. Rh4 f6 33. Rf3 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "5.6"]
[White "Andreev, Dobrotich"]
[Black "Doychev, Ivan"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1881"]
[BlackElo "1188"]
[PlyCount "31"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Nd5 7. Bd2 Bxc3 8.
bxc3 Qc7 9. f4 ({RR} 9. Qh5 Nxc3 10. Bd3 a6 11. Qg5 O-O 12. Nf3 f5 13. exf6
Rxf6 14. Qh5 g6 15. Qh4 Rf7 16. O-O Nd5 17. Ng5 Qd8 18. Qg3 Rg7 19. c4 Nf6 20.
Bc3 Nc6 21. Nxh7 Kxh7 22. Qh4+ Kg8 23. Bxf6 Qf8 {
Li,S (1904)-Hassemeier,M (1715)/Willingen 2016/CBM 172 Extra/1-0}) 9... Nxc3 ({
RR} 9... a6 10. c4 Ne7 11. Bb4 Nbc6 12. Nxc6 Qxc6 13. Qd3 b5 14. O-O-O bxc4 15.
Qxc4 Qxc4 16. Bxc4 Bb7 17. Rhg1 Nd5 18. Bd2 O-O 19. Kb2 Nb6 20. Bb3 a5 21. a4
Rfc8 22. Bc1 Nc4+ 23. Ka1 Bd5 24. Rd4 {
Kurnosov,I (2592)-Meshkov,Y (2429)/Miass 2007/CBM 121 Extra/1/2 (60)}) 10. Qf3
Nd5 11. Nb5 Qxc2 $146 ({RR} 11... Qc5 12. Nd6+ Kf8 ({RR} 12... Ke7 13. Qh5 g6
14. Qg5+ f6 15. Qh6 fxe5 16. fxe5 Re8 17. Bg5+ {
1-0 Kadric,D-Yildirim,O (1782)/Kemer 2007/CBM 121 Extra}) 13. Qh5 g6 14. Qh6+
Ke7 15. Qg7 Rf8 16. f5 Qxd6 17. exd6+ Ke8 18. Bh6 {
1-0 Macia Velazquez,M (2092)-Darias Camacho,F (1906)/Havana 2009/EXT 2012}) ({
RR} 11... Qd8 12. Nd6+ Kf8 13. Qh5 g6 14. Qh6+ Kg8 15. Bd3 Nc6 16. O-O Qf8 17.
Qh3 f5 18. g4 Ndb4 19. gxf5 Nxd3 20. f6 Nd8 21. cxd3 Nf7 22. Bb4 h6 23. Rf3
Nxd6 24. Bxd6 Qd8 25. Qg2 Kf7 26. Rg3 {
Klundt,K (2380)-Sinchurina,T (2050)/Davos 2006/CBM 113 Extra/1-0 (34)}) 12. Rc1
Qa4 13. Rxc8+ Ke7 14. Rxh8 Qxa2 15. Nd6 Nc7 16. Nc8# 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "6.1"]
[White "Krustev, Krasimir S."]
[Black "Kostov, Nikolay"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1970"]
[BlackElo "1648"]
[PlyCount "27"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 Nxe4 5. dxe5 Be7 ({RR} 5... d6 6. Qd5 Be6
7. Qxe4 d5 8. Qe2 dxc4 9. O-O Be7 10. Rd1 Qc8 11. Nc3 O-O 12. h3 h6 13. Be3 Rd8
14. a3 a6 15. Rxd8+ Qxd8 16. Rd1 Qe8 17. Nd5 Bxd5 18. Rxd5 b5 19. c3 Na5 20.
Bf4 {Kasparov,G (2805)-Regnier,B/Geneve 1995/EXT 2003/1/2 (40)}) 6. Qd5 ({RR} 
6. Bxf7+ Kf8 7. Bd5 Nc5 8. O-O Ne6 9. Be3 d6 10. Bd4 dxe5 11. Bxe5 Bf6 12. Re1
Nxe5 13. Nxe5 c6 14. Bxe6 Qxd1 15. Rxd1 Bxe5 16. Rd8+ Ke7 17. Rxh8 Kxe6 18. Nc3
Kf7 19. Re1 Kf6 20. Re3 b6 {
Giczi,A (1457)-Nagy,T (1739)/Fertoszentmiklos 2015/EXT 2017/1-0 (33)}) 6... O-O
7. Qxe4 d5 $146 ({RR} 7... d6 8. O-O Nxe5 ({RR} 8... dxe5 9. Nxe5 Nxe5 10. Qxe5
Bd6 11. Qg5 Be7 12. Qd5 Bd6 13. Bg5 Qd7 14. Qf3 h6 15. Bf4 Be7 16. Nc3 c6 17.
Rad1 Qf5 18. Bd6 Qxf3 19. gxf3 Bxd6 20. Rxd6 Bh3 21. Re1 Rae8 22. Rxe8 Rxe8 23.
Rd1 {Goerens,J (1986)-Ajdarpasic,K (2031)/Luxembourg 2014/EXT 2017/1-0 (41)})
9. Nxe5 dxe5 10. Nc3 c6 11. Be3 Qc7 12. Rad1 Kh8 13. f4 b5 14. Bd3 f5 15. Qxe5
Bd6 16. Qd4 c5 17. Nxb5 cxd4 18. Nxc7 dxe3 19. Nxa8 Bb7 20. Be2 Rd8 21. Rxd6
Rxd6 22. Rd1 {Friedel,M-Matrisch,G (2081)/Recklinghausen 2002/CBM 089 Extra/1-0
}) ({RR} 7... Nb4 8. O-O Kh8 9. a3 Nc6 10. Bd3 g6 11. Bh6 Re8 12. Bc4 d6 13.
Bxf7 Bf5 14. Qe3 dxe5 15. Bxe8 Qxe8 16. Nc3 Bd6 17. Ne4 Ne7 18. Nxd6 cxd6 19.
Rad1 {1-0 Benima,L-Meijer,B/Utrecht 1886/EXT 2002}) 8. Bxd5 Bf5 9. Qxf5 Qxd5
10. O-O Rfe8 11. Nc3 Qa5 12. Bd2 Rad8 13. Ne4 Qb6 14. Bc3 1-0

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "6.2"]
[White "Ivanov, Oleg M."]
[Black "Babatov, Martin"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1548"]
[BlackElo "1737"]
[PlyCount "50"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. c4 c6 2. e4 d5 3. cxd5 cxd5 4. e5 Nc6 5. d4 Bf5 6. Bd3 Bxd3 7. Qxd3 e6 8.
Nf3 Nge7 9. O-O Nf5 10. Be3 ({RR} 10. Nc3 Be7 11. a3 O-O 12. Bd2 Nh4 13. Nxh4
Bxh4 14. Na4 Be7 15. Rac1 Qd7 16. Nc5 Bxc5 17. Rxc5 Rfc8 18. Rfc1 Ne7 19. b3
Rxc5 20. Rxc5 Rc8 21. Rxc8+ Qxc8 22. g4 Nc6 23. Kg2 a6 24. a4 Qf8 {
Agdestein,S (2583)-Wang,Y (2704)/Amsterdam 2008/CBM 126/1/2 (62)}) 10... Be7
11. Na3 $146 ({RR} 11. Nc3 O-O 12. Rac1 Rc8 13. b3 h6 14. Nb1 Qa5 15. Qe2 Rc7
16. h3 Rfc8 17. Qb2 f6 18. exf6 Bxf6 19. g4 Nfxd4 20. Nxd4 Nxd4 21. Bxd4 Bxd4
22. Rxc7 Bxb2 23. Rxc8+ Kh7 24. a3 d4 25. b4 Qg5 {
Matveeva,O (2200)-Dragunov,V (2304)/Perm 2008/EXT 2011/0-1 (38)} {RR} 26. f4
Qd5 27. Nd2 d3 28. Kh2 Bd4 29. Kg3 e5 30. Nf3 exf4+ 31. Kxf4 Bf6 32. Rc5 Qd6+
33. Ke3 b6 34. Rf5 Bc3 35. Rf4 d2 36. Rd1 a5 37. bxa5 Qxa3 38. axb6 Be5+ {
0-1 Shilov,B (2003)-Matveeva,O (2079)/Perm 2007/EXT 2008 (38)}) 11... O-O 12.
Nc2 Rc8 13. Bd2 Qb6 14. g4 Nh4 15. Nxh4 Bxh4 16. g5 f6 17. f4 fxg5 18. fxg5
Nxe5 19. Rxf8+ Rxf8 20. Qe2 Nf3+ 21. Kh1 Nxd2 22. Qxd2 Rf2 23. Qc3 Qd6 24. Qc8+
Kf7 25. g6+ hxg6 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "6.3"]
[White "Georgiev, Nikolay Zh."]
[Black "Andreev, Dobrotich"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "1572"]
[BlackElo "1881"]
[PlyCount "94"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c6 2. Nc3 d5 3. Qf3 dxe4 4. Nxe4 Nd7 5. Bc4 ({RR} 5. Qb3 Ngf6 6. Nxf6+
exf6 7. d4 Nb6 8. Nf3 a5 9. a3 a4 10. Qe3+ Be7 11. c4 O-O 12. Be2 Re8 13. Qc3
Bg4 14. Be3 f5 15. g3 Nd5 16. Qc2 Nxe3 17. fxe3 Bg5 18. O-O Bxe3+ 19. Kg2 Bxd4
{Demkovich,A (2392)-Jobava,B (2715)/Alushta 2010/CBM 136 Extra/0-1 (37)}) 5...
e6 ({RR} 5... Ne5 6. Qb3 Nxc4 7. Qxc4 Qd5 8. Qxd5 cxd5 9. Nc3 e6 10. Nf3 a6 11.
d4 Bb4 12. Bd2 Nf6 13. Na4 Bxd2+ 14. Nxd2 O-O 15. Nb6 Rb8 16. f3 Nd7 17. Nxc8
Rfxc8 18. Rc1 Rc7 19. Ke2 Rbc8 20. c3 {
Salerno,F-Squillante,M (1710)/Ceriano Laghetto 2015/EXT 2017/1-0 (35)}) 6. Qe2
$146 ({RR} 6. d3 Ngf6 7. Ng5 h6 8. Ne4 Be7 9. Qg3 O-O 10. Bxh6 Nh5 11. Qg4 Kh7
12. Ng5+ Bxg5 13. Bxg5 Ndf6 14. Nf3 Nxg4 15. Bxd8 Rxd8 16. Ng5+ Kg8 17. O-O Ne5
18. Rfd1 Nxc4 19. dxc4 Bd7 20. Rd4 c5 {
Taliaferro,N (578)-Aguilar,J (1226)/Detroit 2002/EXT 2007/0-1 (33)}) 6... Ngf6
7. Nf3 Nb6 8. O-O Nxc4 9. Qxc4 Be7 10. Re1 O-O 11. d4 Qd5 12. Qd3 Rd8 13. c4
Qf5 14. Nxf6+ Bxf6 15. Qxf5 exf5 16. Bf4 Be6 17. b3 Bxd4 18. Nxd4 Rxd4 19. Be5
Re4 20. Kf1 f6 21. Bc3 Kf7 22. Rad1 g5 23. f3 Rxe1+ 24. Kxe1 b5 25. cxb5 cxb5
26. Rd2 Rc8 27. Bd4 a6 28. Kd1 f4 29. Bb6 Rc6 30. Ba5 Bf5 31. Bb4 h5 32. Rd6
Rc2 33. Rd2 Rc6 34. Rd6 Rxd6+ 35. Bxd6 Bd3 36. Ke1 Ke6 37. Bb4 Bb1 38. a4 Bc2
39. axb5 axb5 40. Bc3 Bxb3 41. g3 fxg3 42. hxg3 h4 43. gxh4 gxh4 44. Kf1 Kf5
45. Kg2 Bd5 46. Kh3 Bxf3 47. Kxh4 Be4 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "6.4"]
[White "Simov, Zahari"]
[Black "Chowaniec, Artur"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1467"]
[BlackElo "1660"]
[PlyCount "134"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. Nc3 a6 3. a4 e6 4. g3 g6 5. Bg2 Bg7 6. d3 Ne7 7. Nge2 Nbc6 8. O-O (
{RR} 8. Bg5 O-O 9. Qd2 Nd4 10. h4 h5 11. O-O Kh7 12. a5 d6 13. Na4 Bd7 14. Nb6
Rb8 15. Nxd4 cxd4 16. Qb4 Bb5 17. Bf4 e5 18. Bg5 f6 19. Bc1 Bc6 20. Qb3 Nc8 21.
Nxc8 Qxc8 22. Bd2 Qc7 {
Janska,J (2052)-Saumanaite,S (1905)/Prague 2016/CBM 174 Extra/1/2 (76)}) 8...
Nd4 $146 ({RR} 8... O-O 9. Be3 Nd4 10. f4 d6 11. g4 Rb8 12. Rb1 f5 13. gxf5
exf5 14. Ng3 Be6 15. Nd5 fxe4 16. Nxe7+ Qxe7 17. dxe4 Rbd8 18. c3 Nc6 19. Qc2
Na5 20. Rbe1 Bb3 21. Qc1 Nc4 22. f5 Nxe3 23. Qxe3 {Debray,T (2145)
-Guramishvili,S (2302)/Barbera del Valles 2008/CBM 125 Extra/0-1 (35)}) ({RR} 
8... d6 9. Be3 Nd4 10. Qd2 Rb8 11. Rab1 Nec6 12. Bh6 Bxh6 13. Qxh6 Nxc2 14. f4
Ne3 15. Rf3 Ng4 16. Qh3 f5 17. exf5 exf5 18. Nd5 O-O 19. Nec3 b5 20. axb5 axb5
21. Re1 b4 22. Nd1 Re8 23. Rff1 {
Esonboeva,G (1959)-Hamrakulova,Y (2182)/Tashkent 2007/EXT 2015/1/2 (98)}) ({RR
} 8... d5 9. exd5 exd5 10. Nf4 {
1/2 Steinberg,B-Rumiancev,G (2370)/Polanica Zdroj 1996/EXT 1998}) 9. Nxd4 Bxd4
10. Ne2 Bg7 11. c3 d5 12. exd5 Nxd5 13. Nf4 Ne7 14. Be3 Qc7 15. Qc1 Nf5 16. Bd2
O-O 17. Be4 Nd6 18. Bg2 Bd7 19. Ne2 Bc6 20. f3 Rac8 21. Bh6 Nf5 22. Bxg7 Kxg7
23. Re1 Rfd8 24. Qd2 b6 25. Nc1 Qd7 26. f4 Bxa4 27. c4 Bc6 28. Bxc6 Rxc6 29.
Rxa6 Qd4+ 30. Qf2 h5 31. Qxd4+ Nxd4 32. Kf2 Nc2 33. Rd1 Rcd6 34. Ke2 Nd4+ 35.
Kf2 Nf5 36. Re1 Nh6 37. h3 Ng8 38. Re3 Nf6 39. Kf3 Nd7 40. Kf2 Nb8 41. Ra7 Nc6
42. Ra3 Nb4 43. Rf3 Nc2 44. Ra7 Nd4 45. Re3 R8d7 46. Rxd7 Rxd7 47. Re1 Ra7 48.
Ne2 Nc2 49. Rb1 Nb4 50. Ke3 Kf6 51. Nc3 e5 52. fxe5+ Kxe5 53. Kd2 Rd7 54. Re1+
Kf6 55. Ne4+ Kg7 56. Re3 Nc6 57. Nc3 Na5 58. Kc2 Nc6 59. Nd5 Nd4+ 60. Kc3 b5
61. b3 g5 62. Re1 b4+ 63. Nxb4 cxb4+ 64. Kb2 f5 65. Ra1 f4 66. gxf4 gxf4 67.
Ra4 f3 0-1

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "6.5"]
[White "Velikov, Nikola"]
[Black "Dimov, Nikola"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1179"]
[BlackElo "1551"]
[PlyCount "79"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d6 6. Nbd2 c5 7. e4 Qc7 ({RR} 
7... Nbd7 8. c3 b6 9. a4 Bb7 10. Re1 e6 11. Nc4 Ne8 12. Qb3 d5 13. Na5 bxa5 14.
Qxb7 Rb8 15. Qa6 Rb6 16. Qxa5 dxe4 17. dxe4 Qb8 18. e5 Nc7 19. c4 Na6 20. Qc3
h6 21. a5 Rb3 22. Qc2 {
Markovic,M (2485)-Vojinovic,G (2420)/Niksic 1996/EXT 2000/1/2 (40)}) ({RR} 7...
e5 8. Ne1 Bd7 9. f4 exf4 10. Rxf4 Nh5 11. Rf1 Qb6 12. Nc4 Qc7 13. c3 b5 14. e5
Bc6 15. Bxc6 Qxc6 16. Nxd6 Bxe5 17. Ne4 Nd7 18. Qf3 f5 19. Ng5 Qxf3 20. Nexf3
Bg7 21. Ne6 Rf6 22. Nxg7 {
Da Costa Neta,E (1800)-Peixoto,F (1609)/Maraba 2016/CBM 172 Extra/0-1 (63)}) 8.
a4 Nbd7 9. Nc4 Rb8 10. Ne3 $146 ({RR} 10. e5 dxe5 11. Nfxe5 Nxe5 12. Nxe5 Ne8
13. Nc4 Nd6 14. Bf4 Be6 15. Nxd6 exd6 16. c3 Rbd8 17. Qd2 Qc8 18. Rfe1 b6 19.
Bh6 Qd7 20. Re4 f6 21. Rae1 Rde8 22. Rxe6 Rxe6 23. Bd5 Bxh6 24. Qxh6 Rfe8 {
Munoz Orts,G-Del Arco Gimeno,J/Ateneo 1992/EXT 1998/1/2 (51)}) 10... b6 11. Nd2
Bb7 12. f4 e6 13. Qe2 a6 14. Qf2 b5 15. axb5 axb5 16. f5 exf5 17. exf5 Bxg2 18.
Kxg2 Qc6+ 19. Kg1 Ne5 20. Qg2 Qxg2+ 21. Kxg2 Ra8 22. Rb1 Neg4 23. Ne4 Nxe4 24.
dxe4 Nf6 25. Nd5 Nxe4 26. f6 Nxf6 27. Nxf6+ Kh8 28. Nd7 Rfe8 29. Bg5 f5 30. Kg1
Bd4+ 31. Kh1 Re2 32. c3 Bxc3 33. bxc3 Raa2 34. Rfc1 Rxh2+ 35. Kg1 Rhg2+ 36. Kf1
Rgf2+ 37. Ke1 Rh2 38. Kf1 Raf2+ 39. Kg1 Rfg2+ 40. Kf1 1/2-1/2

[Event "190th open MGU"]
[Site "Sofia"]
[Date "2017.09.24"]
[Round "6.6"]
[White "Evtimova, Bilyana"]
[Black "Metev, Martin"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1203"]
[BlackElo "1965"]
[PlyCount "36"]
[EventDate "2017.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 e6 2. Nf3 Nf6 3. Bf4 d5 4. e3 Bd6 5. Be2 ({RR} 5. Bg5 Nbd7 6. c4 c6 7.
Nc3 Qa5 8. c5 Bb8 9. Nd2 e5 10. Be2 Qc7 11. b4 Nf8 12. Nb3 Ng6 13. Qc2 Qe7 14.
O-O-O h6 15. Bxf6 Qxf6 16. g3 exd4 17. exd4 O-O 18. Bd3 Bc7 19. f4 a5 {
Braga,F (2455)-Van Riemsdijk,H (2395)/Buenos Aires 1997/CBM 058 Extra/0-1 (35)}
) 5... Bxf4 6. exf4 Qd6 $146 ({RR} 6... c5 7. dxc5 Qa5+ 8. c3 Qxc5 9. O-O O-O
10. Nbd2 Bd7 ({RR} 10... Nc6 11. Ne5 Nd7 12. Nxd7 Bxd7 13. Bd3 Ne7 14. Qh5 g6
15. Qh6 Bb5 16. Nf3 f6 17. Nd4 Bd7 18. Rae1 Qd6 19. Re3 e5 20. fxe5 fxe5 21.
Rfe1 e4 22. f3 Nf5 23. Nxf5 Rxf5 24. fxe4 dxe4 25. Bc4+ {Palencia Morales,G
(2266)-Guerrero Vargas,A (2296)/Caracas 2015/CBM 170 Extra/1/2}) 11. Qb3 Nc6
12. Ne5 Na5 13. Qc2 Qc7 14. Bd3 Nc6 15. Ndf3 Rac8 16. Rac1 g6 17. Rfe1 Nh5 18.
g3 Be8 19. Qe2 Ng7 20. Bb1 a6 21. Ng4 {
Zhuravlev,N-Lerner,A/Ozery 1997/EXT 2001/1-0 (60)}) 7. g3 Qb4+ 8. c3 Qxb2 9.
Nbd2 Qxc3 10. O-O O-O 11. Rc1 Qa5 12. Qb3 c6 13. Rfe1 Qb6 14. Qxb6 axb6 15. Rb1
Rxa2 16. Rxb6 Nbd7 17. Rbb1 b6 18. Ra1 Rxa1 0-1